Home / 179,140.60-268,646.10-72,479.80

Finding the Fourth Proportional to 179,140.60, 268,646.10 and 72,479.80

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Solution

The fourth proportional to 179,140.60, 268,646.10 and 72,479.80 is: 108,693.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,140.60 : 268,646.10 = 72,479.80 : x
  2. Step 2: Convert to fraction form
    179,140.60/268,646.10 = 72,479.80/x
  3. Step 3: Cross multiply
    179,140.60x = 268,646.10 × 72,479.80
  4. Step 4: Simplify right side
    179,140.60x = 19,471,415,598.78
  5. Step 5: Solve for x
    x = 19,471,415,598.78/179,140.60
  6. Step 6: Final answer
    x = 108,693.48

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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.