Home / 103,489.42-142,816.68-58,164.74

Finding the Fourth Proportional to 103,489.42, 142,816.68 and 58,164.74

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Solution

The fourth proportional to 103,489.42, 142,816.68 and 58,164.74 is: 80,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,489.42 : 142,816.68 = 58,164.74 : x
  2. Step 2: Convert to fraction form
    103,489.42/142,816.68 = 58,164.74/x
  3. Step 3: Cross multiply
    103,489.42x = 142,816.68 × 58,164.74
  4. Step 4: Simplify right side
    103,489.42x = 8,306,895,059.86
  5. Step 5: Solve for x
    x = 8,306,895,059.86/103,489.42
  6. Step 6: Final answer
    x = 80,268.06

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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.