Home / 142,882.26-197,176.59-79,220.04

Finding the Fourth Proportional to 142,882.26, 197,176.59 and 79,220.04

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Solution

The fourth proportional to 142,882.26, 197,176.59 and 79,220.04 is: 109,323.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,882.26 : 197,176.59 = 79,220.04 : x
  2. Step 2: Convert to fraction form
    142,882.26/197,176.59 = 79,220.04/x
  3. Step 3: Cross multiply
    142,882.26x = 197,176.59 × 79,220.04
  4. Step 4: Simplify right side
    142,882.26x = 15,620,337,346.86
  5. Step 5: Solve for x
    x = 15,620,337,346.86/142,882.26
  6. Step 6: Final answer
    x = 109,323.14

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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.