Home / 144,621.60-216,932.40-131,719.20

Finding the Fourth Proportional to 144,621.60, 216,932.40 and 131,719.20

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Solution

The fourth proportional to 144,621.60, 216,932.40 and 131,719.20 is: 197,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,621.60 : 216,932.40 = 131,719.20 : x
  2. Step 2: Convert to fraction form
    144,621.60/216,932.40 = 131,719.20/x
  3. Step 3: Cross multiply
    144,621.60x = 216,932.40 × 131,719.20
  4. Step 4: Simplify right side
    144,621.60x = 28,574,162,182.08
  5. Step 5: Solve for x
    x = 28,574,162,182.08/144,621.60
  6. Step 6: Final answer
    x = 197,578.80

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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.