Home / 115,122.66-172,538.95-61,682.10

Finding the Fourth Proportional to 115,122.66, 172,538.95 and 61,682.10

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Solution

The fourth proportional to 115,122.66, 172,538.95 and 61,682.10 is: 92,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,122.66 : 172,538.95 = 61,682.10 : x
  2. Step 2: Convert to fraction form
    115,122.66/172,538.95 = 61,682.10/x
  3. Step 3: Cross multiply
    115,122.66x = 172,538.95 × 61,682.10
  4. Step 4: Simplify right side
    115,122.66x = 10,642,564,767.80
  5. Step 5: Solve for x
    x = 10,642,564,767.80/115,122.66
  6. Step 6: Final answer
    x = 92,445.44

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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.