Home / 142,686.76-196,998.18-91,723.24

Finding the Fourth Proportional to 142,686.76, 196,998.18 and 91,723.24

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Solution

The fourth proportional to 142,686.76, 196,998.18 and 91,723.24 is: 126,636.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,686.76 : 196,998.18 = 91,723.24 : x
  2. Step 2: Convert to fraction form
    142,686.76/196,998.18 = 91,723.24/x
  3. Step 3: Cross multiply
    142,686.76x = 196,998.18 × 91,723.24
  4. Step 4: Simplify right side
    142,686.76x = 18,069,311,343.70
  5. Step 5: Solve for x
    x = 18,069,311,343.70/142,686.76
  6. Step 6: Final answer
    x = 126,636.22

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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.