Home / 136,780.34-188,843.54-93,831.80

Finding the Fourth Proportional to 136,780.34, 188,843.54 and 93,831.80

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Solution

The fourth proportional to 136,780.34, 188,843.54 and 93,831.80 is: 129,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,780.34 : 188,843.54 = 93,831.80 : x
  2. Step 2: Convert to fraction form
    136,780.34/188,843.54 = 93,831.80/x
  3. Step 3: Cross multiply
    136,780.34x = 188,843.54 × 93,831.80
  4. Step 4: Simplify right side
    136,780.34x = 17,719,527,863.20
  5. Step 5: Solve for x
    x = 17,719,527,863.20/136,780.34
  6. Step 6: Final answer
    x = 129,547.33

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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.