Home / 153,165.61-211,337.31-89,491.11

Finding the Fourth Proportional to 153,165.61, 211,337.31 and 89,491.11

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Solution

The fourth proportional to 153,165.61, 211,337.31 and 89,491.11 is: 123,479.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,165.61 : 211,337.31 = 89,491.11 : x
  2. Step 2: Convert to fraction form
    153,165.61/211,337.31 = 89,491.11/x
  3. Step 3: Cross multiply
    153,165.61x = 211,337.31 × 89,491.11
  4. Step 4: Simplify right side
    153,165.61x = 18,912,810,456.31
  5. Step 5: Solve for x
    x = 18,912,810,456.31/153,165.61
  6. Step 6: Final answer
    x = 123,479.48

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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.