Home / 142,890.20-214,291.52-98,800.28

Finding the Fourth Proportional to 142,890.20, 214,291.52 and 98,800.28

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Solution

The fourth proportional to 142,890.20, 214,291.52 and 98,800.28 is: 148,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,890.20 : 214,291.52 = 98,800.28 : x
  2. Step 2: Convert to fraction form
    142,890.20/214,291.52 = 98,800.28/x
  3. Step 3: Cross multiply
    142,890.20x = 214,291.52 × 98,800.28
  4. Step 4: Simplify right side
    142,890.20x = 21,172,062,177.63
  5. Step 5: Solve for x
    x = 21,172,062,177.63/142,890.20
  6. Step 6: Final answer
    x = 148,170.15

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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.