Home / 107,781.38-148,738.32-62,485.62

Finding the Fourth Proportional to 107,781.38, 148,738.32 and 62,485.62

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Solution

The fourth proportional to 107,781.38, 148,738.32 and 62,485.62 is: 86,230.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,781.38 : 148,738.32 = 62,485.62 : x
  2. Step 2: Convert to fraction form
    107,781.38/148,738.32 = 62,485.62/x
  3. Step 3: Cross multiply
    107,781.38x = 148,738.32 × 62,485.62
  4. Step 4: Simplify right side
    107,781.38x = 9,294,006,142.96
  5. Step 5: Solve for x
    x = 9,294,006,142.96/107,781.38
  6. Step 6: Final answer
    x = 86,230.16

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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.