Home / 102,127.61-140,837.14-68,137.48

Finding the Fourth Proportional to 102,127.61, 140,837.14 and 68,137.48

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Solution

The fourth proportional to 102,127.61, 140,837.14 and 68,137.48 is: 93,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,127.61 : 140,837.14 = 68,137.48 : x
  2. Step 2: Convert to fraction form
    102,127.61/140,837.14 = 68,137.48/x
  3. Step 3: Cross multiply
    102,127.61x = 140,837.14 × 68,137.48
  4. Step 4: Simplify right side
    102,127.61x = 9,596,287,810.01
  5. Step 5: Solve for x
    x = 9,596,287,810.01/102,127.61
  6. Step 6: Final answer
    x = 93,963.70

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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.