Home / 115,029.85-158,700.09-66,605.34

Finding the Fourth Proportional to 115,029.85, 158,700.09 and 66,605.34

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Solution

The fourth proportional to 115,029.85, 158,700.09 and 66,605.34 is: 91,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,029.85 : 158,700.09 = 66,605.34 : x
  2. Step 2: Convert to fraction form
    115,029.85/158,700.09 = 66,605.34/x
  3. Step 3: Cross multiply
    115,029.85x = 158,700.09 × 66,605.34
  4. Step 4: Simplify right side
    115,029.85x = 10,570,273,123.70
  5. Step 5: Solve for x
    x = 10,570,273,123.70/115,029.85
  6. Step 6: Final answer
    x = 91,891.57

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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.