Home / 156,701.20-216,246.34-85,079.80

Finding the Fourth Proportional to 156,701.20, 216,246.34 and 85,079.80

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Solution

The fourth proportional to 156,701.20, 216,246.34 and 85,079.80 is: 117,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,701.20 : 216,246.34 = 85,079.80 : x
  2. Step 2: Convert to fraction form
    156,701.20/216,246.34 = 85,079.80/x
  3. Step 3: Cross multiply
    156,701.20x = 216,246.34 × 85,079.80
  4. Step 4: Simplify right side
    156,701.20x = 18,398,195,357.93
  5. Step 5: Solve for x
    x = 18,398,195,357.93/156,701.20
  6. Step 6: Final answer
    x = 117,409.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.