Home / 113,146.74-156,170.57-65,427.75

Finding the Fourth Proportional to 113,146.74, 156,170.57 and 65,427.75

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Solution

The fourth proportional to 113,146.74, 156,170.57 and 65,427.75 is: 90,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,146.74 : 156,170.57 = 65,427.75 : x
  2. Step 2: Convert to fraction form
    113,146.74/156,170.57 = 65,427.75/x
  3. Step 3: Cross multiply
    113,146.74x = 156,170.57 × 65,427.75
  4. Step 4: Simplify right side
    113,146.74x = 10,217,888,684.18
  5. Step 5: Solve for x
    x = 10,217,888,684.18/113,146.74
  6. Step 6: Final answer
    x = 90,306.52

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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.