Home / 156,711.10-216,255.24-85,089.48

Finding the Fourth Proportional to 156,711.10, 216,255.24 and 85,089.48

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Solution

The fourth proportional to 156,711.10, 216,255.24 and 85,089.48 is: 117,420.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,711.10 : 216,255.24 = 85,089.48 : x
  2. Step 2: Convert to fraction form
    156,711.10/216,255.24 = 85,089.48/x
  3. Step 3: Cross multiply
    156,711.10x = 216,255.24 × 85,089.48
  4. Step 4: Simplify right side
    156,711.10x = 18,401,045,918.88
  5. Step 5: Solve for x
    x = 18,401,045,918.88/156,711.10
  6. Step 6: Final answer
    x = 117,420.18

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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.