Home / 156,777.75-216,353.66-85,156.23

Finding the Fourth Proportional to 156,777.75, 216,353.66 and 85,156.23

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Solution

The fourth proportional to 156,777.75, 216,353.66 and 85,156.23 is: 117,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,777.75 : 216,353.66 = 85,156.23 : x
  2. Step 2: Convert to fraction form
    156,777.75/216,353.66 = 85,156.23/x
  3. Step 3: Cross multiply
    156,777.75x = 216,353.66 × 85,156.23
  4. Step 4: Simplify right side
    156,777.75x = 18,423,862,032.30
  5. Step 5: Solve for x
    x = 18,423,862,032.30/156,777.75
  6. Step 6: Final answer
    x = 117,515.80

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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.