Home / 98,441.04-147,535.20-85,738.80

Finding the Fourth Proportional to 98,441.04, 147,535.20 and 85,738.80

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Solution

The fourth proportional to 98,441.04, 147,535.20 and 85,738.80 is: 128,498.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,441.04 : 147,535.20 = 85,738.80 : x
  2. Step 2: Convert to fraction form
    98,441.04/147,535.20 = 85,738.80/x
  3. Step 3: Cross multiply
    98,441.04x = 147,535.20 × 85,738.80
  4. Step 4: Simplify right side
    98,441.04x = 12,649,491,005.76
  5. Step 5: Solve for x
    x = 12,649,491,005.76/98,441.04
  6. Step 6: Final answer
    x = 128,498.14

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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.