Home / 112,342.15-154,960.98-85,425.65

Finding the Fourth Proportional to 112,342.15, 154,960.98 and 85,425.65

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Solution

The fourth proportional to 112,342.15, 154,960.98 and 85,425.65 is: 117,833.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,342.15 : 154,960.98 = 85,425.65 : x
  2. Step 2: Convert to fraction form
    112,342.15/154,960.98 = 85,425.65/x
  3. Step 3: Cross multiply
    112,342.15x = 154,960.98 × 85,425.65
  4. Step 4: Simplify right side
    112,342.15x = 13,237,641,927.09
  5. Step 5: Solve for x
    x = 13,237,641,927.09/112,342.15
  6. Step 6: Final answer
    x = 117,833.26

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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.