Home / 107,429.18-148,256.13-62,121.38

Finding the Fourth Proportional to 107,429.18, 148,256.13 and 62,121.38

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Solution

The fourth proportional to 107,429.18, 148,256.13 and 62,121.38 is: 85,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,429.18 : 148,256.13 = 62,121.38 : x
  2. Step 2: Convert to fraction form
    107,429.18/148,256.13 = 62,121.38/x
  3. Step 3: Cross multiply
    107,429.18x = 148,256.13 × 62,121.38
  4. Step 4: Simplify right side
    107,429.18x = 9,209,874,647.78
  5. Step 5: Solve for x
    x = 9,209,874,647.78/107,429.18
  6. Step 6: Final answer
    x = 85,729.73

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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.