Home / 147,617.15-221,480.40-47,780.60

Finding the Fourth Proportional to 147,617.15, 221,480.40 and 47,780.60

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Solution

The fourth proportional to 147,617.15, 221,480.40 and 47,780.60 is: 71,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,617.15 : 221,480.40 = 47,780.60 : x
  2. Step 2: Convert to fraction form
    147,617.15/221,480.40 = 47,780.60/x
  3. Step 3: Cross multiply
    147,617.15x = 221,480.40 × 47,780.60
  4. Step 4: Simplify right side
    147,617.15x = 10,582,466,400.24
  5. Step 5: Solve for x
    x = 10,582,466,400.24/147,617.15
  6. Step 6: Final answer
    x = 71,688.60

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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.