Home / 115,262.71-159,063.23-64,278.66

Finding the Fourth Proportional to 115,262.71, 159,063.23 and 64,278.66

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Solution

The fourth proportional to 115,262.71, 159,063.23 and 64,278.66 is: 88,704.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,262.71 : 159,063.23 = 64,278.66 : x
  2. Step 2: Convert to fraction form
    115,262.71/159,063.23 = 64,278.66/x
  3. Step 3: Cross multiply
    115,262.71x = 159,063.23 × 64,278.66
  4. Step 4: Simplify right side
    115,262.71x = 10,224,370,881.08
  5. Step 5: Solve for x
    x = 10,224,370,881.08/115,262.71
  6. Step 6: Final answer
    x = 88,704.94

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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.