Home / 115,261.72-159,133.80-88,353.52

Finding the Fourth Proportional to 115,261.72, 159,133.80 and 88,353.52

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Solution

The fourth proportional to 115,261.72, 159,133.80 and 88,353.52 is: 121,983.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,261.72 : 159,133.80 = 88,353.52 : x
  2. Step 2: Convert to fraction form
    115,261.72/159,133.80 = 88,353.52/x
  3. Step 3: Cross multiply
    115,261.72x = 159,133.80 × 88,353.52
  4. Step 4: Simplify right side
    115,261.72x = 14,060,031,380.98
  5. Step 5: Solve for x
    x = 14,060,031,380.98/115,261.72
  6. Step 6: Final answer
    x = 121,983.53

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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.