Home / 124,458,856.80-186,688,285.20-112,129,425.60

Finding the Fourth Proportional to 124,458,856.80, 186,688,285.20 and 112,129,425.60

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Solution

The fourth proportional to 124,458,856.80, 186,688,285.20 and 112,129,425.60 is: 168,194,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,458,856.80 : 186,688,285.20 = 112,129,425.60 : x
  2. Step 2: Convert to fraction form
    124,458,856.80/186,688,285.20 = 112,129,425.60/x
  3. Step 3: Cross multiply
    124,458,856.80x = 186,688,285.20 × 112,129,425.60
  4. Step 4: Simplify right side
    124,458,856.80x = 20,933,250,185,724,980
  5. Step 5: Solve for x
    x = 20,933,250,185,724,980/124,458,856.80
  6. Step 6: Final answer
    x = 168,194,138.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.