Home / 124,012.50-171,155.97-75,642.54

Finding the Fourth Proportional to 124,012.50, 171,155.97 and 75,642.54

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Solution

The fourth proportional to 124,012.50, 171,155.97 and 75,642.54 is: 104,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,012.50 : 171,155.97 = 75,642.54 : x
  2. Step 2: Convert to fraction form
    124,012.50/171,155.97 = 75,642.54/x
  3. Step 3: Cross multiply
    124,012.50x = 171,155.97 × 75,642.54
  4. Step 4: Simplify right side
    124,012.50x = 12,946,672,306.96
  5. Step 5: Solve for x
    x = 12,946,672,306.96/124,012.50
  6. Step 6: Final answer
    x = 104,398.12

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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.