Home / 99,044.28-136,734.06-77,488.20

Finding the Fourth Proportional to 99,044.28, 136,734.06 and 77,488.20

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Solution

The fourth proportional to 99,044.28, 136,734.06 and 77,488.20 is: 106,975.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,044.28 : 136,734.06 = 77,488.20 : x
  2. Step 2: Convert to fraction form
    99,044.28/136,734.06 = 77,488.20/x
  3. Step 3: Cross multiply
    99,044.28x = 136,734.06 × 77,488.20
  4. Step 4: Simplify right side
    99,044.28x = 10,595,276,188.09
  5. Step 5: Solve for x
    x = 10,595,276,188.09/99,044.28
  6. Step 6: Final answer
    x = 106,975.14

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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.