Home / 116,451.28-160,763.88-78,410.80

Finding the Fourth Proportional to 116,451.28, 160,763.88 and 78,410.80

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Solution

The fourth proportional to 116,451.28, 160,763.88 and 78,410.80 is: 108,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,451.28 : 160,763.88 = 78,410.80 : x
  2. Step 2: Convert to fraction form
    116,451.28/160,763.88 = 78,410.80/x
  3. Step 3: Cross multiply
    116,451.28x = 160,763.88 × 78,410.80
  4. Step 4: Simplify right side
    116,451.28x = 12,605,624,441.90
  5. Step 5: Solve for x
    x = 12,605,624,441.90/116,451.28
  6. Step 6: Final answer
    x = 108,248.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.