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Finding the Fourth Proportional to 113,486.60, 170,229.90 and 101,239.40

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Solution

The fourth proportional to 113,486.60, 170,229.90 and 101,239.40 is: 151,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,486.60 : 170,229.90 = 101,239.40 : x
  2. Step 2: Convert to fraction form
    113,486.60/170,229.90 = 101,239.40/x
  3. Step 3: Cross multiply
    113,486.60x = 170,229.90 × 101,239.40
  4. Step 4: Simplify right side
    113,486.60x = 17,233,972,938.06
  5. Step 5: Solve for x
    x = 17,233,972,938.06/113,486.60
  6. Step 6: Final answer
    x = 151,859.10

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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.