Home / 143,151.20-214,726.80-90,007.10

Finding the Fourth Proportional to 143,151.20, 214,726.80 and 90,007.10

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Solution

The fourth proportional to 143,151.20, 214,726.80 and 90,007.10 is: 135,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,151.20 : 214,726.80 = 90,007.10 : x
  2. Step 2: Convert to fraction form
    143,151.20/214,726.80 = 90,007.10/x
  3. Step 3: Cross multiply
    143,151.20x = 214,726.80 × 90,007.10
  4. Step 4: Simplify right side
    143,151.20x = 19,326,936,560.28
  5. Step 5: Solve for x
    x = 19,326,936,560.28/143,151.20
  6. Step 6: Final answer
    x = 135,010.65

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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.