Home / 120,001.40-179,564.70-109,503.80

Finding the Fourth Proportional to 120,001.40, 179,564.70 and 109,503.80

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Solution

The fourth proportional to 120,001.40, 179,564.70 and 109,503.80 is: 163,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,001.40 : 179,564.70 = 109,503.80 : x
  2. Step 2: Convert to fraction form
    120,001.40/179,564.70 = 109,503.80/x
  3. Step 3: Cross multiply
    120,001.40x = 179,564.70 × 109,503.80
  4. Step 4: Simplify right side
    120,001.40x = 19,663,016,995.86
  5. Step 5: Solve for x
    x = 19,663,016,995.86/120,001.40
  6. Step 6: Final answer
    x = 163,856.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.