Home / 112,367.12-155,067.16-61,380.56

Finding the Fourth Proportional to 112,367.12, 155,067.16 and 61,380.56

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Solution

The fourth proportional to 112,367.12, 155,067.16 and 61,380.56 is: 84,705.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,367.12 : 155,067.16 = 61,380.56 : x
  2. Step 2: Convert to fraction form
    112,367.12/155,067.16 = 61,380.56/x
  3. Step 3: Cross multiply
    112,367.12x = 155,067.16 × 61,380.56
  4. Step 4: Simplify right side
    112,367.12x = 9,518,108,964.96
  5. Step 5: Solve for x
    x = 9,518,108,964.96/112,367.12
  6. Step 6: Final answer
    x = 84,705.46

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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.