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Finding the Fourth Proportional to 161,498.66, 222,865.97 and 89,878.66

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Solution

The fourth proportional to 161,498.66, 222,865.97 and 89,878.66 is: 124,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,498.66 : 222,865.97 = 89,878.66 : x
  2. Step 2: Convert to fraction form
    161,498.66/222,865.97 = 89,878.66/x
  3. Step 3: Cross multiply
    161,498.66x = 222,865.97 × 89,878.66
  4. Step 4: Simplify right side
    161,498.66x = 20,030,893,179.48
  5. Step 5: Solve for x
    x = 20,030,893,179.48/161,498.66
  6. Step 6: Final answer
    x = 124,031.33

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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.