Home / 151,690.20-209,374.11-88,048.50

Finding the Fourth Proportional to 151,690.20, 209,374.11 and 88,048.50

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Solution

The fourth proportional to 151,690.20, 209,374.11 and 88,048.50 is: 121,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,690.20 : 209,374.11 = 88,048.50 : x
  2. Step 2: Convert to fraction form
    151,690.20/209,374.11 = 88,048.50/x
  3. Step 3: Cross multiply
    151,690.20x = 209,374.11 × 88,048.50
  4. Step 4: Simplify right side
    151,690.20x = 18,435,076,324.34
  5. Step 5: Solve for x
    x = 18,435,076,324.34/151,690.20
  6. Step 6: Final answer
    x = 121,531.10

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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.