Home / 144,521.28-216,743.58-39,315.78

Finding the Fourth Proportional to 144,521.28, 216,743.58 and 39,315.78

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Solution

The fourth proportional to 144,521.28, 216,743.58 and 39,315.78 is: 58,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,521.28 : 216,743.58 = 39,315.78 : x
  2. Step 2: Convert to fraction form
    144,521.28/216,743.58 = 39,315.78/x
  3. Step 3: Cross multiply
    144,521.28x = 216,743.58 × 39,315.78
  4. Step 4: Simplify right side
    144,521.28x = 8,521,442,907.69
  5. Step 5: Solve for x
    x = 8,521,442,907.69/144,521.28
  6. Step 6: Final answer
    x = 58,963.24

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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.