Home / 103,519.26-142,839.09-58,191.21

Finding the Fourth Proportional to 103,519.26, 142,839.09 and 58,191.21

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Solution

The fourth proportional to 103,519.26, 142,839.09 and 58,191.21 is: 80,294.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519.26 : 142,839.09 = 58,191.21 : x
  2. Step 2: Convert to fraction form
    103,519.26/142,839.09 = 58,191.21/x
  3. Step 3: Cross multiply
    103,519.26x = 142,839.09 × 58,191.21
  4. Step 4: Simplify right side
    103,519.26x = 8,311,979,482.40
  5. Step 5: Solve for x
    x = 8,311,979,482.40/103,519.26
  6. Step 6: Final answer
    x = 80,294.04

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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.