Home / 156,778.04-216,353.66-85,158.20

Finding the Fourth Proportional to 156,778.04, 216,353.66 and 85,158.20

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Solution

The fourth proportional to 156,778.04, 216,353.66 and 85,158.20 is: 117,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,778.04 : 216,353.66 = 85,158.20 : x
  2. Step 2: Convert to fraction form
    156,778.04/216,353.66 = 85,158.20/x
  3. Step 3: Cross multiply
    156,778.04x = 216,353.66 × 85,158.20
  4. Step 4: Simplify right side
    156,778.04x = 18,424,288,249.01
  5. Step 5: Solve for x
    x = 18,424,288,249.01/156,778.04
  6. Step 6: Final answer
    x = 117,518.30

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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.