Home / 142,663.52-196,873.04-79,001.12

Finding the Fourth Proportional to 142,663.52, 196,873.04 and 79,001.12

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Solution

The fourth proportional to 142,663.52, 196,873.04 and 79,001.12 is: 109,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,663.52 : 196,873.04 = 79,001.12 : x
  2. Step 2: Convert to fraction form
    142,663.52/196,873.04 = 79,001.12/x
  3. Step 3: Cross multiply
    142,663.52x = 196,873.04 × 79,001.12
  4. Step 4: Simplify right side
    142,663.52x = 15,553,190,657.80
  5. Step 5: Solve for x
    x = 15,553,190,657.80/142,663.52
  6. Step 6: Final answer
    x = 109,020.10

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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.