Home / 107,442.90-148,225.28-67,129.20

Finding the Fourth Proportional to 107,442.90, 148,225.28 and 67,129.20

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Solution

The fourth proportional to 107,442.90, 148,225.28 and 67,129.20 is: 92,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,442.90 : 148,225.28 = 67,129.20 : x
  2. Step 2: Convert to fraction form
    107,442.90/148,225.28 = 67,129.20/x
  3. Step 3: Cross multiply
    107,442.90x = 148,225.28 × 67,129.20
  4. Step 4: Simplify right side
    107,442.90x = 9,950,244,130.53
  5. Step 5: Solve for x
    x = 9,950,244,130.53/107,442.90
  6. Step 6: Final answer
    x = 92,609.60

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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.