Home / 112,344.15-154,963.73-85,427.65

Finding the Fourth Proportional to 112,344.15, 154,963.73 and 85,427.65

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Solution

The fourth proportional to 112,344.15, 154,963.73 and 85,427.65 is: 117,836.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,344.15 : 154,963.73 = 85,427.65 : x
  2. Step 2: Convert to fraction form
    112,344.15/154,963.73 = 85,427.65/x
  3. Step 3: Cross multiply
    112,344.15x = 154,963.73 × 85,427.65
  4. Step 4: Simplify right side
    112,344.15x = 13,238,187,289.13
  5. Step 5: Solve for x
    x = 13,238,187,289.13/112,344.15
  6. Step 6: Final answer
    x = 117,836.02

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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.