Home / 115,373.41-159,215.34-63,690.54

Finding the Fourth Proportional to 115,373.41, 159,215.34 and 63,690.54

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Solution

The fourth proportional to 115,373.41, 159,215.34 and 63,690.54 is: 87,892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,373.41 : 159,215.34 = 63,690.54 : x
  2. Step 2: Convert to fraction form
    115,373.41/159,215.34 = 63,690.54/x
  3. Step 3: Cross multiply
    115,373.41x = 159,215.34 × 63,690.54
  4. Step 4: Simplify right side
    115,373.41x = 10,140,510,980.88
  5. Step 5: Solve for x
    x = 10,140,510,980.88/115,373.41
  6. Step 6: Final answer
    x = 87,892.96

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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.