Home / 103,502.50-142,832.18-58,188.04

Finding the Fourth Proportional to 103,502.50, 142,832.18 and 58,188.04

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Solution

The fourth proportional to 103,502.50, 142,832.18 and 58,188.04 is: 80,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,502.50 : 142,832.18 = 58,188.04 : x
  2. Step 2: Convert to fraction form
    103,502.50/142,832.18 = 58,188.04/x
  3. Step 3: Cross multiply
    103,502.50x = 142,832.18 × 58,188.04
  4. Step 4: Simplify right side
    103,502.50x = 8,311,124,603.13
  5. Step 5: Solve for x
    x = 8,311,124,603.13/103,502.50
  6. Step 6: Final answer
    x = 80,298.78

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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.