Home / 87,970.35-131,955.51-76,088.81

Finding the Fourth Proportional to 87,970.35, 131,955.51 and 76,088.81

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Solution

The fourth proportional to 87,970.35, 131,955.51 and 76,088.81 is: 114,133.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,970.35 : 131,955.51 = 76,088.81 : x
  2. Step 2: Convert to fraction form
    87,970.35/131,955.51 = 76,088.81/x
  3. Step 3: Cross multiply
    87,970.35x = 131,955.51 × 76,088.81
  4. Step 4: Simplify right side
    87,970.35x = 10,040,337,330.94
  5. Step 5: Solve for x
    x = 10,040,337,330.94/87,970.35
  6. Step 6: Final answer
    x = 114,133.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.