Home / 115,043.78-158,728.41-69,091.16

Finding the Fourth Proportional to 115,043.78, 158,728.41 and 69,091.16

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Solution

The fourth proportional to 115,043.78, 158,728.41 and 69,091.16 is: 95,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,043.78 : 158,728.41 = 69,091.16 : x
  2. Step 2: Convert to fraction form
    115,043.78/158,728.41 = 69,091.16/x
  3. Step 3: Cross multiply
    115,043.78x = 158,728.41 × 69,091.16
  4. Step 4: Simplify right side
    115,043.78x = 10,966,729,178.21
  5. Step 5: Solve for x
    x = 10,966,729,178.21/115,043.78
  6. Step 6: Final answer
    x = 95,326.57

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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.