Home / 124,987.98-172,491.03-71,283.36

Finding the Fourth Proportional to 124,987.98, 172,491.03 and 71,283.36

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Solution

The fourth proportional to 124,987.98, 172,491.03 and 71,283.36 is: 98,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,987.98 : 172,491.03 = 71,283.36 : x
  2. Step 2: Convert to fraction form
    124,987.98/172,491.03 = 71,283.36/x
  3. Step 3: Cross multiply
    124,987.98x = 172,491.03 × 71,283.36
  4. Step 4: Simplify right side
    124,987.98x = 12,295,740,188.26
  5. Step 5: Solve for x
    x = 12,295,740,188.26/124,987.98
  6. Step 6: Final answer
    x = 98,375.38

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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.