Home / 143,801.60-215,702.40-132,429.20

Finding the Fourth Proportional to 143,801.60, 215,702.40 and 132,429.20

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Solution

The fourth proportional to 143,801.60, 215,702.40 and 132,429.20 is: 198,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,801.60 : 215,702.40 = 132,429.20 : x
  2. Step 2: Convert to fraction form
    143,801.60/215,702.40 = 132,429.20/x
  3. Step 3: Cross multiply
    143,801.60x = 215,702.40 × 132,429.20
  4. Step 4: Simplify right side
    143,801.60x = 28,565,296,270.08
  5. Step 5: Solve for x
    x = 28,565,296,270.08/143,801.60
  6. Step 6: Final answer
    x = 198,643.80

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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.