Home / 112,617.07-168,747.78-91,454.13

Finding the Fourth Proportional to 112,617.07, 168,747.78 and 91,454.13

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Solution

The fourth proportional to 112,617.07, 168,747.78 and 91,454.13 is: 137,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,617.07 : 168,747.78 = 91,454.13 : x
  2. Step 2: Convert to fraction form
    112,617.07/168,747.78 = 91,454.13/x
  3. Step 3: Cross multiply
    112,617.07x = 168,747.78 × 91,454.13
  4. Step 4: Simplify right side
    112,617.07x = 15,432,680,783.16
  5. Step 5: Solve for x
    x = 15,432,680,783.16/112,617.07
  6. Step 6: Final answer
    x = 137,036.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.