Home / 115,152.14-158,910.30-66,763.48

Finding the Fourth Proportional to 115,152.14, 158,910.30 and 66,763.48

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Solution

The fourth proportional to 115,152.14, 158,910.30 and 66,763.48 is: 92,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,152.14 : 158,910.30 = 66,763.48 : x
  2. Step 2: Convert to fraction form
    115,152.14/158,910.30 = 66,763.48/x
  3. Step 3: Cross multiply
    115,152.14x = 158,910.30 × 66,763.48
  4. Step 4: Simplify right side
    115,152.14x = 10,609,403,507.48
  5. Step 5: Solve for x
    x = 10,609,403,507.48/115,152.14
  6. Step 6: Final answer
    x = 92,133.80

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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.