Home / 103,581.17-142,940.59-58,259.13

Finding the Fourth Proportional to 103,581.17, 142,940.59 and 58,259.13

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Solution

The fourth proportional to 103,581.17, 142,940.59 and 58,259.13 is: 80,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,581.17 : 142,940.59 = 58,259.13 : x
  2. Step 2: Convert to fraction form
    103,581.17/142,940.59 = 58,259.13/x
  3. Step 3: Cross multiply
    103,581.17x = 142,940.59 × 58,259.13
  4. Step 4: Simplify right side
    103,581.17x = 8,327,594,269.44
  5. Step 5: Solve for x
    x = 8,327,594,269.44/103,581.17
  6. Step 6: Final answer
    x = 80,396.80

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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.