Home / 139,524.16-209,281.60-60,638.48

Finding the Fourth Proportional to 139,524.16, 209,281.60 and 60,638.48

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Solution

The fourth proportional to 139,524.16, 209,281.60 and 60,638.48 is: 90,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,524.16 : 209,281.60 = 60,638.48 : x
  2. Step 2: Convert to fraction form
    139,524.16/209,281.60 = 60,638.48/x
  3. Step 3: Cross multiply
    139,524.16x = 209,281.60 × 60,638.48
  4. Step 4: Simplify right side
    139,524.16x = 12,690,518,115.97
  5. Step 5: Solve for x
    x = 12,690,518,115.97/139,524.16
  6. Step 6: Final answer
    x = 90,955.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.