Home / 156,706.32-216,255.58-85,086.35

Finding the Fourth Proportional to 156,706.32, 216,255.58 and 85,086.35

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Solution

The fourth proportional to 156,706.32, 216,255.58 and 85,086.35 is: 117,419.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,706.32 : 216,255.58 = 85,086.35 : x
  2. Step 2: Convert to fraction form
    156,706.32/216,255.58 = 85,086.35/x
  3. Step 3: Cross multiply
    156,706.32x = 216,255.58 × 85,086.35
  4. Step 4: Simplify right side
    156,706.32x = 18,400,396,929.18
  5. Step 5: Solve for x
    x = 18,400,396,929.18/156,706.32
  6. Step 6: Final answer
    x = 117,419.62

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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.