Home / 153,042.03-211,165.20-89,350.92

Finding the Fourth Proportional to 153,042.03, 211,165.20 and 89,350.92

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Solution

The fourth proportional to 153,042.03, 211,165.20 and 89,350.92 is: 123,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,042.03 : 211,165.20 = 89,350.92 : x
  2. Step 2: Convert to fraction form
    153,042.03/211,165.20 = 89,350.92/x
  3. Step 3: Cross multiply
    153,042.03x = 211,165.20 × 89,350.92
  4. Step 4: Simplify right side
    153,042.03x = 18,867,804,891.98
  5. Step 5: Solve for x
    x = 18,867,804,891.98/153,042.03
  6. Step 6: Final answer
    x = 123,285.12

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1.5x scale

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.