Home / 103,519.46-142,839.02-58,191.16

Finding the Fourth Proportional to 103,519.46, 142,839.02 and 58,191.16

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Solution

The fourth proportional to 103,519.46, 142,839.02 and 58,191.16 is: 80,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519.46 : 142,839.02 = 58,191.16 : x
  2. Step 2: Convert to fraction form
    103,519.46/142,839.02 = 58,191.16/x
  3. Step 3: Cross multiply
    103,519.46x = 142,839.02 × 58,191.16
  4. Step 4: Simplify right side
    103,519.46x = 8,311,968,267.06
  5. Step 5: Solve for x
    x = 8,311,968,267.06/103,519.46
  6. Step 6: Final answer
    x = 80,293.78

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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.