Home / 107,311.80-160,989.30-89,902.20

Finding the Fourth Proportional to 107,311.80, 160,989.30 and 89,902.20

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Solution

The fourth proportional to 107,311.80, 160,989.30 and 89,902.20 is: 134,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,311.80 : 160,989.30 = 89,902.20 : x
  2. Step 2: Convert to fraction form
    107,311.80/160,989.30 = 89,902.20/x
  3. Step 3: Cross multiply
    107,311.80x = 160,989.30 × 89,902.20
  4. Step 4: Simplify right side
    107,311.80x = 14,473,292,246.46
  5. Step 5: Solve for x
    x = 14,473,292,246.46/107,311.80
  6. Step 6: Final answer
    x = 134,871.40

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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.