Home / 103,655.88-155,385.27-40,516.47

Finding the Fourth Proportional to 103,655.88, 155,385.27 and 40,516.47

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Solution

The fourth proportional to 103,655.88, 155,385.27 and 40,516.47 is: 60,736.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,655.88 : 155,385.27 = 40,516.47 : x
  2. Step 2: Convert to fraction form
    103,655.88/155,385.27 = 40,516.47/x
  3. Step 3: Cross multiply
    103,655.88x = 155,385.27 × 40,516.47
  4. Step 4: Simplify right side
    103,655.88x = 6,295,662,630.40
  5. Step 5: Solve for x
    x = 6,295,662,630.40/103,655.88
  6. Step 6: Final answer
    x = 60,736.18

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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.