Home / 124,897.14-187,333.56-68,718.78

Finding the Fourth Proportional to 124,897.14, 187,333.56 and 68,718.78

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Solution

The fourth proportional to 124,897.14, 187,333.56 and 68,718.78 is: 103,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,897.14 : 187,333.56 = 68,718.78 : x
  2. Step 2: Convert to fraction form
    124,897.14/187,333.56 = 68,718.78/x
  3. Step 3: Cross multiply
    124,897.14x = 187,333.56 × 68,718.78
  4. Step 4: Simplify right side
    124,897.14x = 12,873,333,696.26
  5. Step 5: Solve for x
    x = 12,873,333,696.26/124,897.14
  6. Step 6: Final answer
    x = 103,071.49

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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.