Home / 115,205.04-158,922.28-79,332.88

Finding the Fourth Proportional to 115,205.04, 158,922.28 and 79,332.88

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Solution

The fourth proportional to 115,205.04, 158,922.28 and 79,332.88 is: 109,437.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,205.04 : 158,922.28 = 79,332.88 : x
  2. Step 2: Convert to fraction form
    115,205.04/158,922.28 = 79,332.88/x
  3. Step 3: Cross multiply
    115,205.04x = 158,922.28 × 79,332.88
  4. Step 4: Simplify right side
    115,205.04x = 12,607,762,168.57
  5. Step 5: Solve for x
    x = 12,607,762,168.57/115,205.04
  6. Step 6: Final answer
    x = 109,437.59

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1.5x scale

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.