Home / 147,979.20-221,970.86-48,139.92

Finding the Fourth Proportional to 147,979.20, 221,970.86 and 48,139.92

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Solution

The fourth proportional to 147,979.20, 221,970.86 and 48,139.92 is: 72,210.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,979.20 : 221,970.86 = 48,139.92 : x
  2. Step 2: Convert to fraction form
    147,979.20/221,970.86 = 48,139.92/x
  3. Step 3: Cross multiply
    147,979.20x = 221,970.86 × 48,139.92
  4. Step 4: Simplify right side
    147,979.20x = 10,685,659,442.73
  5. Step 5: Solve for x
    x = 10,685,659,442.73/147,979.20
  6. Step 6: Final answer
    x = 72,210.55

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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.