Home / 156,713.49-216,258.57-85,091.90

Finding the Fourth Proportional to 156,713.49, 216,258.57 and 85,091.90

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Solution

The fourth proportional to 156,713.49, 216,258.57 and 85,091.90 is: 117,423.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,713.49 : 216,258.57 = 85,091.90 : x
  2. Step 2: Convert to fraction form
    156,713.49/216,258.57 = 85,091.90/x
  3. Step 3: Cross multiply
    156,713.49x = 216,258.57 × 85,091.90
  4. Step 4: Simplify right side
    156,713.49x = 18,401,851,531.29
  5. Step 5: Solve for x
    x = 18,401,851,531.29/156,713.49
  6. Step 6: Final answer
    x = 117,423.53

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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.