Home / 115,330.70-172,996.05-92,002.70

Finding the Fourth Proportional to 115,330.70, 172,996.05 and 92,002.70

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Solution

The fourth proportional to 115,330.70, 172,996.05 and 92,002.70 is: 138,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,330.70 : 172,996.05 = 92,002.70 : x
  2. Step 2: Convert to fraction form
    115,330.70/172,996.05 = 92,002.70/x
  3. Step 3: Cross multiply
    115,330.70x = 172,996.05 × 92,002.70
  4. Step 4: Simplify right side
    115,330.70x = 15,916,103,689.34
  5. Step 5: Solve for x
    x = 15,916,103,689.34/115,330.70
  6. Step 6: Final answer
    x = 138,004.05

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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.