Home / 112,191.24-154,813.15-61,887

Finding the Fourth Proportional to 112,191.24, 154,813.15 and 61,887

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Solution

The fourth proportional to 112,191.24, 154,813.15 and 61,887 is: 85,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,191.24 : 154,813.15 = 61,887 : x
  2. Step 2: Convert to fraction form
    112,191.24/154,813.15 = 61,887/x
  3. Step 3: Cross multiply
    112,191.24x = 154,813.15 × 61,887
  4. Step 4: Simplify right side
    112,191.24x = 9,580,921,414.05
  5. Step 5: Solve for x
    x = 9,580,921,414.05/112,191.24
  6. Step 6: Final answer
    x = 85,398.12

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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.