Home / 103,621.10-155,513.67-40,471.48

Finding the Fourth Proportional to 103,621.10, 155,513.67 and 40,471.48

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Solution

The fourth proportional to 103,621.10, 155,513.67 and 40,471.48 is: 60,739.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.10 : 155,513.67 = 40,471.48 : x
  2. Step 2: Convert to fraction form
    103,621.10/155,513.67 = 40,471.48/x
  3. Step 3: Cross multiply
    103,621.10x = 155,513.67 × 40,471.48
  4. Step 4: Simplify right side
    103,621.10x = 6,293,868,385.13
  5. Step 5: Solve for x
    x = 6,293,868,385.13/103,621.10
  6. Step 6: Final answer
    x = 60,739.25

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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.