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Finding the Fourth Proportional to 101,334.90, 152,002.35 and 85,005.30

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Solution

The fourth proportional to 101,334.90, 152,002.35 and 85,005.30 is: 127,507.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,334.90 : 152,002.35 = 85,005.30 : x
  2. Step 2: Convert to fraction form
    101,334.90/152,002.35 = 85,005.30/x
  3. Step 3: Cross multiply
    101,334.90x = 152,002.35 × 85,005.30
  4. Step 4: Simplify right side
    101,334.90x = 12,921,005,362.46
  5. Step 5: Solve for x
    x = 12,921,005,362.46/101,334.90
  6. Step 6: Final answer
    x = 127,507.95

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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.