Home / 163,443.20-245,217.60-80,278.88

Finding the Fourth Proportional to 163,443.20, 245,217.60 and 80,278.88

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Solution

The fourth proportional to 163,443.20, 245,217.60 and 80,278.88 is: 120,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,443.20 : 245,217.60 = 80,278.88 : x
  2. Step 2: Convert to fraction form
    163,443.20/245,217.60 = 80,278.88/x
  3. Step 3: Cross multiply
    163,443.20x = 245,217.60 × 80,278.88
  4. Step 4: Simplify right side
    163,443.20x = 19,685,794,284.29
  5. Step 5: Solve for x
    x = 19,685,794,284.29/163,443.20
  6. Step 6: Final answer
    x = 120,444.25

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1.5x scale

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.