Home / 147,520.20-221,280.30-68,788.20

Finding the Fourth Proportional to 147,520.20, 221,280.30 and 68,788.20

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Solution

The fourth proportional to 147,520.20, 221,280.30 and 68,788.20 is: 103,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,520.20 : 221,280.30 = 68,788.20 : x
  2. Step 2: Convert to fraction form
    147,520.20/221,280.30 = 68,788.20/x
  3. Step 3: Cross multiply
    147,520.20x = 221,280.30 × 68,788.20
  4. Step 4: Simplify right side
    147,520.20x = 15,221,473,532.46
  5. Step 5: Solve for x
    x = 15,221,473,532.46/147,520.20
  6. Step 6: Final answer
    x = 103,182.30

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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.