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Finding the Fourth Proportional to 162,764.80, 244,147.20 and 99,779.20

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Solution

The fourth proportional to 162,764.80, 244,147.20 and 99,779.20 is: 149,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,764.80 : 244,147.20 = 99,779.20 : x
  2. Step 2: Convert to fraction form
    162,764.80/244,147.20 = 99,779.20/x
  3. Step 3: Cross multiply
    162,764.80x = 244,147.20 × 99,779.20
  4. Step 4: Simplify right side
    162,764.80x = 24,360,812,298.24
  5. Step 5: Solve for x
    x = 24,360,812,298.24/162,764.80
  6. Step 6: Final answer
    x = 149,668.80

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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.