Home / 156,812.24-216,401.10-85,192.32

Finding the Fourth Proportional to 156,812.24, 216,401.10 and 85,192.32

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Solution

The fourth proportional to 156,812.24, 216,401.10 and 85,192.32 is: 117,565.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,812.24 : 216,401.10 = 85,192.32 : x
  2. Step 2: Convert to fraction form
    156,812.24/216,401.10 = 85,192.32/x
  3. Step 3: Cross multiply
    156,812.24x = 216,401.10 × 85,192.32
  4. Step 4: Simplify right side
    156,812.24x = 18,435,711,759.55
  5. Step 5: Solve for x
    x = 18,435,711,759.55/156,812.24
  6. Step 6: Final answer
    x = 117,565.52

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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.