Home / 103,701.28-155,612.34-43,726.08

Finding the Fourth Proportional to 103,701.28, 155,612.34 and 43,726.08

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Solution

The fourth proportional to 103,701.28, 155,612.34 and 43,726.08 is: 65,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,701.28 : 155,612.34 = 43,726.08 : x
  2. Step 2: Convert to fraction form
    103,701.28/155,612.34 = 43,726.08/x
  3. Step 3: Cross multiply
    103,701.28x = 155,612.34 × 43,726.08
  4. Step 4: Simplify right side
    103,701.28x = 6,804,317,627.83
  5. Step 5: Solve for x
    x = 6,804,317,627.83/103,701.28
  6. Step 6: Final answer
    x = 65,614.60

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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.