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Finding the Fourth Proportional to 124,677.70, 187,020.32 and 40,435.54

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Solution

The fourth proportional to 124,677.70, 187,020.32 and 40,435.54 is: 60,654.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,677.70 : 187,020.32 = 40,435.54 : x
  2. Step 2: Convert to fraction form
    124,677.70/187,020.32 = 40,435.54/x
  3. Step 3: Cross multiply
    124,677.70x = 187,020.32 × 40,435.54
  4. Step 4: Simplify right side
    124,677.70x = 7,562,267,630.17
  5. Step 5: Solve for x
    x = 7,562,267,630.17/124,677.70
  6. Step 6: Final answer
    x = 60,654.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.