Home / 142,416.18-196,524.63-78,753.42

Finding the Fourth Proportional to 142,416.18, 196,524.63 and 78,753.42

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Solution

The fourth proportional to 142,416.18, 196,524.63 and 78,753.42 is: 108,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,416.18 : 196,524.63 = 78,753.42 : x
  2. Step 2: Convert to fraction form
    142,416.18/196,524.63 = 78,753.42/x
  3. Step 3: Cross multiply
    142,416.18x = 196,524.63 × 78,753.42
  4. Step 4: Simplify right side
    142,416.18x = 15,476,986,726.73
  5. Step 5: Solve for x
    x = 15,476,986,726.73/142,416.18
  6. Step 6: Final answer
    x = 108,674.36

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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.