Home / 99,218.96-136,923.62-53,897.79

Finding the Fourth Proportional to 99,218.96, 136,923.62 and 53,897.79

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Solution

The fourth proportional to 99,218.96, 136,923.62 and 53,897.79 is: 74,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,218.96 : 136,923.62 = 53,897.79 : x
  2. Step 2: Convert to fraction form
    99,218.96/136,923.62 = 53,897.79/x
  3. Step 3: Cross multiply
    99,218.96x = 136,923.62 × 53,897.79
  4. Step 4: Simplify right side
    99,218.96x = 7,379,880,247.31
  5. Step 5: Solve for x
    x = 7,379,880,247.31/99,218.96
  6. Step 6: Final answer
    x = 74,379.74

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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.