Home / 143,987.48-198,702.16-80,325.24

Finding the Fourth Proportional to 143,987.48, 198,702.16 and 80,325.24

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Solution

The fourth proportional to 143,987.48, 198,702.16 and 80,325.24 is: 110,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,987.48 : 198,702.16 = 80,325.24 : x
  2. Step 2: Convert to fraction form
    143,987.48/198,702.16 = 80,325.24/x
  3. Step 3: Cross multiply
    143,987.48x = 198,702.16 × 80,325.24
  4. Step 4: Simplify right side
    143,987.48x = 15,960,798,690.52
  5. Step 5: Solve for x
    x = 15,960,798,690.52/143,987.48
  6. Step 6: Final answer
    x = 110,848.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.