Home / 136,470.14-188,329.18-79,120.60

Finding the Fourth Proportional to 136,470.14, 188,329.18 and 79,120.60

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Solution

The fourth proportional to 136,470.14, 188,329.18 and 79,120.60 is: 109,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,470.14 : 188,329.18 = 79,120.60 : x
  2. Step 2: Convert to fraction form
    136,470.14/188,329.18 = 79,120.60/x
  3. Step 3: Cross multiply
    136,470.14x = 188,329.18 × 79,120.60
  4. Step 4: Simplify right side
    136,470.14x = 14,900,717,719.11
  5. Step 5: Solve for x
    x = 14,900,717,719.11/136,470.14
  6. Step 6: Final answer
    x = 109,186.65

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1.5x scale

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.