Home / 145,749.40-218,624.12-112,517.96

Finding the Fourth Proportional to 145,749.40, 218,624.12 and 112,517.96

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Solution

The fourth proportional to 145,749.40, 218,624.12 and 112,517.96 is: 168,776.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,749.40 : 218,624.12 = 112,517.96 : x
  2. Step 2: Convert to fraction form
    145,749.40/218,624.12 = 112,517.96/x
  3. Step 3: Cross multiply
    145,749.40x = 218,624.12 × 112,517.96
  4. Step 4: Simplify right side
    145,749.40x = 24,599,139,989.20
  5. Step 5: Solve for x
    x = 24,599,139,989.20/145,749.40
  6. Step 6: Final answer
    x = 168,776.96

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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.