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Finding the Fourth Proportional to 119,898.40, 179,847.60 and 114,779.20

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Solution

The fourth proportional to 119,898.40, 179,847.60 and 114,779.20 is: 172,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,898.40 : 179,847.60 = 114,779.20 : x
  2. Step 2: Convert to fraction form
    119,898.40/179,847.60 = 114,779.20/x
  3. Step 3: Cross multiply
    119,898.40x = 179,847.60 × 114,779.20
  4. Step 4: Simplify right side
    119,898.40x = 20,642,763,649.92
  5. Step 5: Solve for x
    x = 20,642,763,649.92/119,898.40
  6. Step 6: Final answer
    x = 172,168.80

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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.