Home / 129,006.64-193,507.96-90,898.36

Finding the Fourth Proportional to 129,006.64, 193,507.96 and 90,898.36

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Solution

The fourth proportional to 129,006.64, 193,507.96 and 90,898.36 is: 136,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,006.64 : 193,507.96 = 90,898.36 : x
  2. Step 2: Convert to fraction form
    129,006.64/193,507.96 = 90,898.36/x
  3. Step 3: Cross multiply
    129,006.64x = 193,507.96 × 90,898.36
  4. Step 4: Simplify right side
    129,006.64x = 17,589,556,210.95
  5. Step 5: Solve for x
    x = 17,589,556,210.95/129,006.64
  6. Step 6: Final answer
    x = 136,346.13

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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.