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Finding the Fourth Proportional to 151,866.90, 209,540.52 and 88,166.88

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Solution

The fourth proportional to 151,866.90, 209,540.52 and 88,166.88 is: 121,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,866.90 : 209,540.52 = 88,166.88 : x
  2. Step 2: Convert to fraction form
    151,866.90/209,540.52 = 88,166.88/x
  3. Step 3: Cross multiply
    151,866.90x = 209,540.52 × 88,166.88
  4. Step 4: Simplify right side
    151,866.90x = 18,474,533,881.98
  5. Step 5: Solve for x
    x = 18,474,533,881.98/151,866.90
  6. Step 6: Final answer
    x = 121,649.51

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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.