Home / 156,763.74-216,330.38-85,142.22

Finding the Fourth Proportional to 156,763.74, 216,330.38 and 85,142.22

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Solution

The fourth proportional to 156,763.74, 216,330.38 and 85,142.22 is: 117,494.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,763.74 : 216,330.38 = 85,142.22 : x
  2. Step 2: Convert to fraction form
    156,763.74/216,330.38 = 85,142.22/x
  3. Step 3: Cross multiply
    156,763.74x = 216,330.38 × 85,142.22
  4. Step 4: Simplify right side
    156,763.74x = 18,418,848,806.64
  5. Step 5: Solve for x
    x = 18,418,848,806.64/156,763.74
  6. Step 6: Final answer
    x = 117,494.32

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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.