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Finding the Fourth Proportional to 153,874.80, 230,779.80 and 65,131.20

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Solution

The fourth proportional to 153,874.80, 230,779.80 and 65,131.20 is: 97,683.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,874.80 : 230,779.80 = 65,131.20 : x
  2. Step 2: Convert to fraction form
    153,874.80/230,779.80 = 65,131.20/x
  3. Step 3: Cross multiply
    153,874.80x = 230,779.80 × 65,131.20
  4. Step 4: Simplify right side
    153,874.80x = 15,030,965,309.76
  5. Step 5: Solve for x
    x = 15,030,965,309.76/153,874.80
  6. Step 6: Final answer
    x = 97,683.09

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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.