Home / 124,688.46-187,874.40-102,987.96

Finding the Fourth Proportional to 124,688.46, 187,874.40 and 102,987.96

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Solution

The fourth proportional to 124,688.46, 187,874.40 and 102,987.96 is: 155,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,688.46 : 187,874.40 = 102,987.96 : x
  2. Step 2: Convert to fraction form
    124,688.46/187,874.40 = 102,987.96/x
  3. Step 3: Cross multiply
    124,688.46x = 187,874.40 × 102,987.96
  4. Step 4: Simplify right side
    124,688.46x = 19,348,801,192.22
  5. Step 5: Solve for x
    x = 19,348,801,192.22/124,688.46
  6. Step 6: Final answer
    x = 155,177.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.