Home / 156,950.42-216,587.13-85,328.78

Finding the Fourth Proportional to 156,950.42, 216,587.13 and 85,328.78

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Solution

The fourth proportional to 156,950.42, 216,587.13 and 85,328.78 is: 117,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,950.42 : 216,587.13 = 85,328.78 : x
  2. Step 2: Convert to fraction form
    156,950.42/216,587.13 = 85,328.78/x
  3. Step 3: Cross multiply
    156,950.42x = 216,587.13 × 85,328.78
  4. Step 4: Simplify right side
    156,950.42x = 18,481,115,566.60
  5. Step 5: Solve for x
    x = 18,481,115,566.60/156,950.42
  6. Step 6: Final answer
    x = 117,751.30

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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.