Home / 105,470.80-158,206.20-43,126.72

Finding the Fourth Proportional to 105,470.80, 158,206.20 and 43,126.72

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Solution

The fourth proportional to 105,470.80, 158,206.20 and 43,126.72 is: 64,690.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,470.80 : 158,206.20 = 43,126.72 : x
  2. Step 2: Convert to fraction form
    105,470.80/158,206.20 = 43,126.72/x
  3. Step 3: Cross multiply
    105,470.80x = 158,206.20 × 43,126.72
  4. Step 4: Simplify right side
    105,470.80x = 6,822,914,489.66
  5. Step 5: Solve for x
    x = 6,822,914,489.66/105,470.80
  6. Step 6: Final answer
    x = 64,690.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.