Home / 143,981.32-216,037.62-73,909.88

Finding the Fourth Proportional to 143,981.32, 216,037.62 and 73,909.88

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Solution

The fourth proportional to 143,981.32, 216,037.62 and 73,909.88 is: 110,898.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,981.32 : 216,037.62 = 73,909.88 : x
  2. Step 2: Convert to fraction form
    143,981.32/216,037.62 = 73,909.88/x
  3. Step 3: Cross multiply
    143,981.32x = 216,037.62 × 73,909.88
  4. Step 4: Simplify right side
    143,981.32x = 15,967,314,569.69
  5. Step 5: Solve for x
    x = 15,967,314,569.69/143,981.32
  6. Step 6: Final answer
    x = 110,898.51

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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.