Home / 103,505.50-142,836.32-58,191.04

Finding the Fourth Proportional to 103,505.50, 142,836.32 and 58,191.04

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Solution

The fourth proportional to 103,505.50, 142,836.32 and 58,191.04 is: 80,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,505.50 : 142,836.32 = 58,191.04 : x
  2. Step 2: Convert to fraction form
    103,505.50/142,836.32 = 58,191.04/x
  3. Step 3: Cross multiply
    103,505.50x = 142,836.32 × 58,191.04
  4. Step 4: Simplify right side
    103,505.50x = 8,311,794,010.57
  5. Step 5: Solve for x
    x = 8,311,794,010.57/103,505.50
  6. Step 6: Final answer
    x = 80,302.92

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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.