Home / 153,167.11-211,339.38-89,492.61

Finding the Fourth Proportional to 153,167.11, 211,339.38 and 89,492.61

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Solution

The fourth proportional to 153,167.11, 211,339.38 and 89,492.61 is: 123,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,167.11 : 211,339.38 = 89,492.61 : x
  2. Step 2: Convert to fraction form
    153,167.11/211,339.38 = 89,492.61/x
  3. Step 3: Cross multiply
    153,167.11x = 211,339.38 × 89,492.61
  4. Step 4: Simplify right side
    153,167.11x = 18,913,312,711.98
  5. Step 5: Solve for x
    x = 18,913,312,711.98/153,167.11
  6. Step 6: Final answer
    x = 123,481.55

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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.