Home / 115,006.20-172,517.40-65,110.20

Finding the Fourth Proportional to 115,006.20, 172,517.40 and 65,110.20

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Solution

The fourth proportional to 115,006.20, 172,517.40 and 65,110.20 is: 97,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,006.20 : 172,517.40 = 65,110.20 : x
  2. Step 2: Convert to fraction form
    115,006.20/172,517.40 = 65,110.20/x
  3. Step 3: Cross multiply
    115,006.20x = 172,517.40 × 65,110.20
  4. Step 4: Simplify right side
    115,006.20x = 11,232,642,417.48
  5. Step 5: Solve for x
    x = 11,232,642,417.48/115,006.20
  6. Step 6: Final answer
    x = 97,669.89

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1.5x scale

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.