Home / 105,815.20-158,724.24-39,229.60

Finding the Fourth Proportional to 105,815.20, 158,724.24 and 39,229.60

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Solution

The fourth proportional to 105,815.20, 158,724.24 and 39,229.60 is: 58,844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,815.20 : 158,724.24 = 39,229.60 : x
  2. Step 2: Convert to fraction form
    105,815.20/158,724.24 = 39,229.60/x
  3. Step 3: Cross multiply
    105,815.20x = 158,724.24 × 39,229.60
  4. Step 4: Simplify right side
    105,815.20x = 6,226,688,445.50
  5. Step 5: Solve for x
    x = 6,226,688,445.50/105,815.20
  6. Step 6: Final answer
    x = 58,844.93

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1.5x scale

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.