Home / 109,147.40-150,632.16-61,397.90

Finding the Fourth Proportional to 109,147.40, 150,632.16 and 61,397.90

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Solution

The fourth proportional to 109,147.40, 150,632.16 and 61,397.90 is: 84,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,147.40 : 150,632.16 = 61,397.90 : x
  2. Step 2: Convert to fraction form
    109,147.40/150,632.16 = 61,397.90/x
  3. Step 3: Cross multiply
    109,147.40x = 150,632.16 × 61,397.90
  4. Step 4: Simplify right side
    109,147.40x = 9,248,498,296.46
  5. Step 5: Solve for x
    x = 9,248,498,296.46/109,147.40
  6. Step 6: Final answer
    x = 84,734.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.