Home / 112,565.05-155,348.20-64,168.13

Finding the Fourth Proportional to 112,565.05, 155,348.20 and 64,168.13

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Solution

The fourth proportional to 112,565.05, 155,348.20 and 64,168.13 is: 88,556.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,565.05 : 155,348.20 = 64,168.13 : x
  2. Step 2: Convert to fraction form
    112,565.05/155,348.20 = 64,168.13/x
  3. Step 3: Cross multiply
    112,565.05x = 155,348.20 × 64,168.13
  4. Step 4: Simplify right side
    112,565.05x = 9,968,403,332.45
  5. Step 5: Solve for x
    x = 9,968,403,332.45/112,565.05
  6. Step 6: Final answer
    x = 88,556.82

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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.