Home / 115,257.58-159,042.63-64,265.92

Finding the Fourth Proportional to 115,257.58, 159,042.63 and 64,265.92

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Solution

The fourth proportional to 115,257.58, 159,042.63 and 64,265.92 is: 88,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,257.58 : 159,042.63 = 64,265.92 : x
  2. Step 2: Convert to fraction form
    115,257.58/159,042.63 = 64,265.92/x
  3. Step 3: Cross multiply
    115,257.58x = 159,042.63 × 64,265.92
  4. Step 4: Simplify right side
    115,257.58x = 10,221,020,936.17
  5. Step 5: Solve for x
    x = 10,221,020,936.17/115,257.58
  6. Step 6: Final answer
    x = 88,679.82

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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.