Home / 198,001.90-297,002.85-127,143.10

Finding the Fourth Proportional to 198,001.90, 297,002.85 and 127,143.10

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Solution

The fourth proportional to 198,001.90, 297,002.85 and 127,143.10 is: 190,714.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,001.90 : 297,002.85 = 127,143.10 : x
  2. Step 2: Convert to fraction form
    198,001.90/297,002.85 = 127,143.10/x
  3. Step 3: Cross multiply
    198,001.90x = 297,002.85 × 127,143.10
  4. Step 4: Simplify right side
    198,001.90x = 37,761,863,057.84
  5. Step 5: Solve for x
    x = 37,761,863,057.84/198,001.90
  6. Step 6: Final answer
    x = 190,714.65

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1.5x scale

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.