Home / 88,088.60-132,392.10-76,683.80

Finding the Fourth Proportional to 88,088.60, 132,392.10 and 76,683.80

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Solution

The fourth proportional to 88,088.60, 132,392.10 and 76,683.80 is: 115,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,088.60 : 132,392.10 = 76,683.80 : x
  2. Step 2: Convert to fraction form
    88,088.60/132,392.10 = 76,683.80/x
  3. Step 3: Cross multiply
    88,088.60x = 132,392.10 × 76,683.80
  4. Step 4: Simplify right side
    88,088.60x = 10,152,329,317.98
  5. Step 5: Solve for x
    x = 10,152,329,317.98/88,088.60
  6. Step 6: Final answer
    x = 115,251.34

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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.