Home / 115,147.54-158,903.93-66,758.85

Finding the Fourth Proportional to 115,147.54, 158,903.93 and 66,758.85

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Solution

The fourth proportional to 115,147.54, 158,903.93 and 66,758.85 is: 92,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,147.54 : 158,903.93 = 66,758.85 : x
  2. Step 2: Convert to fraction form
    115,147.54/158,903.93 = 66,758.85/x
  3. Step 3: Cross multiply
    115,147.54x = 158,903.93 × 66,758.85
  4. Step 4: Simplify right side
    115,147.54x = 10,608,243,794.18
  5. Step 5: Solve for x
    x = 10,608,243,794.18/115,147.54
  6. Step 6: Final answer
    x = 92,127.40

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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.