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Finding the Fourth Proportional to 158,656.80, 237,923.40 and 79,716

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Solution

The fourth proportional to 158,656.80, 237,923.40 and 79,716 is: 119,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,656.80 : 237,923.40 = 79,716 : x
  2. Step 2: Convert to fraction form
    158,656.80/237,923.40 = 79,716/x
  3. Step 3: Cross multiply
    158,656.80x = 237,923.40 × 79,716
  4. Step 4: Simplify right side
    158,656.80x = 18,966,301,754.40
  5. Step 5: Solve for x
    x = 18,966,301,754.40/158,656.80
  6. Step 6: Final answer
    x = 119,542.95

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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.