Home / 115,356.68-159,187.30-65,060.36

Finding the Fourth Proportional to 115,356.68, 159,187.30 and 65,060.36

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Solution

The fourth proportional to 115,356.68, 159,187.30 and 65,060.36 is: 89,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,356.68 : 159,187.30 = 65,060.36 : x
  2. Step 2: Convert to fraction form
    115,356.68/159,187.30 = 65,060.36/x
  3. Step 3: Cross multiply
    115,356.68x = 159,187.30 × 65,060.36
  4. Step 4: Simplify right side
    115,356.68x = 10,356,783,045.43
  5. Step 5: Solve for x
    x = 10,356,783,045.43/115,356.68
  6. Step 6: Final answer
    x = 89,780.52

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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.