Home / 115,260.75-159,053.70-64,278.72

Finding the Fourth Proportional to 115,260.75, 159,053.70 and 64,278.72

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Solution

The fourth proportional to 115,260.75, 159,053.70 and 64,278.72 is: 88,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,260.75 : 159,053.70 = 64,278.72 : x
  2. Step 2: Convert to fraction form
    115,260.75/159,053.70 = 64,278.72/x
  3. Step 3: Cross multiply
    115,260.75x = 159,053.70 × 64,278.72
  4. Step 4: Simplify right side
    115,260.75x = 10,223,768,247.26
  5. Step 5: Solve for x
    x = 10,223,768,247.26/115,260.75
  6. Step 6: Final answer
    x = 88,701.21

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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.