Home / 156,081.36-234,193.12-66,148.72

Finding the Fourth Proportional to 156,081.36, 234,193.12 and 66,148.72

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Solution

The fourth proportional to 156,081.36, 234,193.12 and 66,148.72 is: 99,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,081.36 : 234,193.12 = 66,148.72 : x
  2. Step 2: Convert to fraction form
    156,081.36/234,193.12 = 66,148.72/x
  3. Step 3: Cross multiply
    156,081.36x = 234,193.12 × 66,148.72
  4. Step 4: Simplify right side
    156,081.36x = 15,491,575,120.81
  5. Step 5: Solve for x
    x = 15,491,575,120.81/156,081.36
  6. Step 6: Final answer
    x = 99,253.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.