Home / 113,388.28-156,466.29-66,813.76

Finding the Fourth Proportional to 113,388.28, 156,466.29 and 66,813.76

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Solution

The fourth proportional to 113,388.28, 156,466.29 and 66,813.76 is: 92,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,388.28 : 156,466.29 = 66,813.76 : x
  2. Step 2: Convert to fraction form
    113,388.28/156,466.29 = 66,813.76/x
  3. Step 3: Cross multiply
    113,388.28x = 156,466.29 × 66,813.76
  4. Step 4: Simplify right side
    113,388.28x = 10,454,101,148.15
  5. Step 5: Solve for x
    x = 10,454,101,148.15/113,388.28
  6. Step 6: Final answer
    x = 92,197.37

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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.