Home / 136,425.47-188,242.13-75,994.61

Finding the Fourth Proportional to 136,425.47, 188,242.13 and 75,994.61

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Solution

The fourth proportional to 136,425.47, 188,242.13 and 75,994.61 is: 104,858.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,425.47 : 188,242.13 = 75,994.61 : x
  2. Step 2: Convert to fraction form
    136,425.47/188,242.13 = 75,994.61/x
  3. Step 3: Cross multiply
    136,425.47x = 188,242.13 × 75,994.61
  4. Step 4: Simplify right side
    136,425.47x = 14,305,386,503.70
  5. Step 5: Solve for x
    x = 14,305,386,503.70/136,425.47
  6. Step 6: Final answer
    x = 104,858.62

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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.