Home / 129,160.40-193,740.32-35,665.88

Finding the Fourth Proportional to 129,160.40, 193,740.32 and 35,665.88

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Solution

The fourth proportional to 129,160.40, 193,740.32 and 35,665.88 is: 53,498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,160.40 : 193,740.32 = 35,665.88 : x
  2. Step 2: Convert to fraction form
    129,160.40/193,740.32 = 35,665.88/x
  3. Step 3: Cross multiply
    129,160.40x = 193,740.32 × 35,665.88
  4. Step 4: Simplify right side
    129,160.40x = 6,909,917,857.25
  5. Step 5: Solve for x
    x = 6,909,917,857.25/129,160.40
  6. Step 6: Final answer
    x = 53,498.74

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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.