Home / 144,544.20-216,815.10-112,980.78

Finding the Fourth Proportional to 144,544.20, 216,815.10 and 112,980.78

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Solution

The fourth proportional to 144,544.20, 216,815.10 and 112,980.78 is: 169,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,544.20 : 216,815.10 = 112,980.78 : x
  2. Step 2: Convert to fraction form
    144,544.20/216,815.10 = 112,980.78/x
  3. Step 3: Cross multiply
    144,544.20x = 216,815.10 × 112,980.78
  4. Step 4: Simplify right side
    144,544.20x = 24,495,939,113.78
  5. Step 5: Solve for x
    x = 24,495,939,113.78/144,544.20
  6. Step 6: Final answer
    x = 169,470.23

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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.