Home / 142,974.29-197,328.17-79,332.59

Finding the Fourth Proportional to 142,974.29, 197,328.17 and 79,332.59

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Solution

The fourth proportional to 142,974.29, 197,328.17 and 79,332.59 is: 109,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974.29 : 197,328.17 = 79,332.59 : x
  2. Step 2: Convert to fraction form
    142,974.29/197,328.17 = 79,332.59/x
  3. Step 3: Cross multiply
    142,974.29x = 197,328.17 × 79,332.59
  4. Step 4: Simplify right side
    142,974.29x = 15,654,554,806.06
  5. Step 5: Solve for x
    x = 15,654,554,806.06/142,974.29
  6. Step 6: Final answer
    x = 109,492.10

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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.