Home / 136,753.47-188,729.25-76,335.84

Finding the Fourth Proportional to 136,753.47, 188,729.25 and 76,335.84

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Solution

The fourth proportional to 136,753.47, 188,729.25 and 76,335.84 is: 105,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,753.47 : 188,729.25 = 76,335.84 : x
  2. Step 2: Convert to fraction form
    136,753.47/188,729.25 = 76,335.84/x
  3. Step 3: Cross multiply
    136,753.47x = 188,729.25 × 76,335.84
  4. Step 4: Simplify right side
    136,753.47x = 14,406,805,831.32
  5. Step 5: Solve for x
    x = 14,406,805,831.32/136,753.47
  6. Step 6: Final answer
    x = 105,348.74

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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.