Home / 88,691.70-133,037.55-86,942.10

Finding the Fourth Proportional to 88,691.70, 133,037.55 and 86,942.10

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Solution

The fourth proportional to 88,691.70, 133,037.55 and 86,942.10 is: 130,413.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.70 : 133,037.55 = 86,942.10 : x
  2. Step 2: Convert to fraction form
    88,691.70/133,037.55 = 86,942.10/x
  3. Step 3: Cross multiply
    88,691.70x = 133,037.55 × 86,942.10
  4. Step 4: Simplify right side
    88,691.70x = 11,566,563,975.86
  5. Step 5: Solve for x
    x = 11,566,563,975.86/88,691.70
  6. Step 6: Final answer
    x = 130,413.15

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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.