Home / 137,360.08-189,561.12-76,930.60

Finding the Fourth Proportional to 137,360.08, 189,561.12 and 76,930.60

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Solution

The fourth proportional to 137,360.08, 189,561.12 and 76,930.60 is: 106,166.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,360.08 : 189,561.12 = 76,930.60 : x
  2. Step 2: Convert to fraction form
    137,360.08/189,561.12 = 76,930.60/x
  3. Step 3: Cross multiply
    137,360.08x = 189,561.12 × 76,930.60
  4. Step 4: Simplify right side
    137,360.08x = 14,583,050,698.27
  5. Step 5: Solve for x
    x = 14,583,050,698.27/137,360.08
  6. Step 6: Final answer
    x = 106,166.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.