Home / 115,910,103.10-173,865,154.65-86,999,712.70

Finding the Fourth Proportional to 115,910,103.10, 173,865,154.65 and 86,999,712.70

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Solution

The fourth proportional to 115,910,103.10, 173,865,154.65 and 86,999,712.70 is: 130,499,569.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,910,103.10 : 173,865,154.65 = 86,999,712.70 : x
  2. Step 2: Convert to fraction form
    115,910,103.10/173,865,154.65 = 86,999,712.70/x
  3. Step 3: Cross multiply
    115,910,103.10x = 173,865,154.65 × 86,999,712.70
  4. Step 4: Simplify right side
    115,910,103.10x = 15,126,218,503,091,070
  5. Step 5: Solve for x
    x = 15,126,218,503,091,070/115,910,103.10
  6. Step 6: Final answer
    x = 130,499,569.05

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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.