Home / 124,995.17-172,489.07-71,297.57

Finding the Fourth Proportional to 124,995.17, 172,489.07 and 71,297.57

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Solution

The fourth proportional to 124,995.17, 172,489.07 and 71,297.57 is: 98,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,995.17 : 172,489.07 = 71,297.57 : x
  2. Step 2: Convert to fraction form
    124,995.17/172,489.07 = 71,297.57/x
  3. Step 3: Cross multiply
    124,995.17x = 172,489.07 × 71,297.57
  4. Step 4: Simplify right side
    124,995.17x = 12,298,050,858.36
  5. Step 5: Solve for x
    x = 12,298,050,858.36/124,995.17
  6. Step 6: Final answer
    x = 98,388.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.