Home / 99,217.89-136,918.39-53,894.86

Finding the Fourth Proportional to 99,217.89, 136,918.39 and 53,894.86

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Solution

The fourth proportional to 99,217.89, 136,918.39 and 53,894.86 is: 74,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,217.89 : 136,918.39 = 53,894.86 : x
  2. Step 2: Convert to fraction form
    99,217.89/136,918.39 = 53,894.86/x
  3. Step 3: Cross multiply
    99,217.89x = 136,918.39 × 53,894.86
  4. Step 4: Simplify right side
    99,217.89x = 7,379,196,816.16
  5. Step 5: Solve for x
    x = 7,379,196,816.16/99,217.89
  6. Step 6: Final answer
    x = 74,373.65

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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.