Home / 103,542.55-142,830.34-62,138.96

Finding the Fourth Proportional to 103,542.55, 142,830.34 and 62,138.96

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Solution

The fourth proportional to 103,542.55, 142,830.34 and 62,138.96 is: 85,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,542.55 : 142,830.34 = 62,138.96 : x
  2. Step 2: Convert to fraction form
    103,542.55/142,830.34 = 62,138.96/x
  3. Step 3: Cross multiply
    103,542.55x = 142,830.34 × 62,138.96
  4. Step 4: Simplify right side
    103,542.55x = 8,875,328,450.16
  5. Step 5: Solve for x
    x = 8,875,328,450.16/103,542.55
  6. Step 6: Final answer
    x = 85,716.73

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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.