Home / 115,263.76-159,057.84-64,281.72

Finding the Fourth Proportional to 115,263.76, 159,057.84 and 64,281.72

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Solution

The fourth proportional to 115,263.76, 159,057.84 and 64,281.72 is: 88,705.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,263.76 : 159,057.84 = 64,281.72 : x
  2. Step 2: Convert to fraction form
    115,263.76/159,057.84 = 64,281.72/x
  3. Step 3: Cross multiply
    115,263.76x = 159,057.84 × 64,281.72
  4. Step 4: Simplify right side
    115,263.76x = 10,224,511,534.68
  5. Step 5: Solve for x
    x = 10,224,511,534.68/115,263.76
  6. Step 6: Final answer
    x = 88,705.34

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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.