Home / 112,201.12-154,836.48-61,899.76

Finding the Fourth Proportional to 112,201.12, 154,836.48 and 61,899.76

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Solution

The fourth proportional to 112,201.12, 154,836.48 and 61,899.76 is: 85,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,201.12 : 154,836.48 = 61,899.76 : x
  2. Step 2: Convert to fraction form
    112,201.12/154,836.48 = 61,899.76/x
  3. Step 3: Cross multiply
    112,201.12x = 154,836.48 × 61,899.76
  4. Step 4: Simplify right side
    112,201.12x = 9,584,340,951.24
  5. Step 5: Solve for x
    x = 9,584,340,951.24/112,201.12
  6. Step 6: Final answer
    x = 85,421.08

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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.