Home / 213,090.10-319,519.95-88,443.70

Finding the Fourth Proportional to 213,090.10, 319,519.95 and 88,443.70

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Solution

The fourth proportional to 213,090.10, 319,519.95 and 88,443.70 is: 132,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,090.10 : 319,519.95 = 88,443.70 : x
  2. Step 2: Convert to fraction form
    213,090.10/319,519.95 = 88,443.70/x
  3. Step 3: Cross multiply
    213,090.10x = 319,519.95 × 88,443.70
  4. Step 4: Simplify right side
    213,090.10x = 28,259,526,601.82
  5. Step 5: Solve for x
    x = 28,259,526,601.82/213,090.10
  6. Step 6: Final answer
    x = 132,617.74

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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.