Home / 145,764.60-218,744.10-82,584.60

Finding the Fourth Proportional to 145,764.60, 218,744.10 and 82,584.60

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Solution

The fourth proportional to 145,764.60, 218,744.10 and 82,584.60 is: 123,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,764.60 : 218,744.10 = 82,584.60 : x
  2. Step 2: Convert to fraction form
    145,764.60/218,744.10 = 82,584.60/x
  3. Step 3: Cross multiply
    145,764.60x = 218,744.10 × 82,584.60
  4. Step 4: Simplify right side
    145,764.60x = 18,064,894,000.86
  5. Step 5: Solve for x
    x = 18,064,894,000.86/145,764.60
  6. Step 6: Final answer
    x = 123,931.97

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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.