Home / 115,343.16-159,162.30-66,937.56

Finding the Fourth Proportional to 115,343.16, 159,162.30 and 66,937.56

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Solution

The fourth proportional to 115,343.16, 159,162.30 and 66,937.56 is: 92,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,343.16 : 159,162.30 = 66,937.56 : x
  2. Step 2: Convert to fraction form
    115,343.16/159,162.30 = 66,937.56/x
  3. Step 3: Cross multiply
    115,343.16x = 159,162.30 × 66,937.56
  4. Step 4: Simplify right side
    115,343.16x = 10,653,936,005.99
  5. Step 5: Solve for x
    x = 10,653,936,005.99/115,343.16
  6. Step 6: Final answer
    x = 92,367.30

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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.