Home / 88,318.80-132,975.40-77,856.02

Finding the Fourth Proportional to 88,318.80, 132,975.40 and 77,856.02

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Solution

The fourth proportional to 88,318.80, 132,975.40 and 77,856.02 is: 117,222.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,318.80 : 132,975.40 = 77,856.02 : x
  2. Step 2: Convert to fraction form
    88,318.80/132,975.40 = 77,856.02/x
  3. Step 3: Cross multiply
    88,318.80x = 132,975.40 × 77,856.02
  4. Step 4: Simplify right side
    88,318.80x = 10,352,935,401.91
  5. Step 5: Solve for x
    x = 10,352,935,401.91/88,318.80
  6. Step 6: Final answer
    x = 117,222.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.