Home / 105,470.40-158,113.76-43,101.12

Finding the Fourth Proportional to 105,470.40, 158,113.76 and 43,101.12

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Solution

The fourth proportional to 105,470.40, 158,113.76 and 43,101.12 is: 64,614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,470.40 : 158,113.76 = 43,101.12 : x
  2. Step 2: Convert to fraction form
    105,470.40/158,113.76 = 43,101.12/x
  3. Step 3: Cross multiply
    105,470.40x = 158,113.76 × 43,101.12
  4. Step 4: Simplify right side
    105,470.40x = 6,814,880,143.41
  5. Step 5: Solve for x
    x = 6,814,880,143.41/105,470.40
  6. Step 6: Final answer
    x = 64,614.15

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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.