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Finding the Fourth Proportional to 113,145.30, 169,717.95 and 100,898.10

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Solution

The fourth proportional to 113,145.30, 169,717.95 and 100,898.10 is: 151,347.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,145.30 : 169,717.95 = 100,898.10 : x
  2. Step 2: Convert to fraction form
    113,145.30/169,717.95 = 100,898.10/x
  3. Step 3: Cross multiply
    113,145.30x = 169,717.95 × 100,898.10
  4. Step 4: Simplify right side
    113,145.30x = 17,124,218,690.90
  5. Step 5: Solve for x
    x = 17,124,218,690.90/113,145.30
  6. Step 6: Final answer
    x = 151,347.15

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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.