Home / 115,322.46-159,145.17-63,638.35

Finding the Fourth Proportional to 115,322.46, 159,145.17 and 63,638.35

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Solution

The fourth proportional to 115,322.46, 159,145.17 and 63,638.35 is: 87,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,322.46 : 159,145.17 = 63,638.35 : x
  2. Step 2: Convert to fraction form
    115,322.46/159,145.17 = 63,638.35/x
  3. Step 3: Cross multiply
    115,322.46x = 159,145.17 × 63,638.35
  4. Step 4: Simplify right side
    115,322.46x = 10,127,735,750.73
  5. Step 5: Solve for x
    x = 10,127,735,750.73/115,322.46
  6. Step 6: Final answer
    x = 87,821.02

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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.