Home / 99,219.08-136,923.33-53,897.96

Finding the Fourth Proportional to 99,219.08, 136,923.33 and 53,897.96

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Solution

The fourth proportional to 99,219.08, 136,923.33 and 53,897.96 is: 74,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,219.08 : 136,923.33 = 53,897.96 : x
  2. Step 2: Convert to fraction form
    99,219.08/136,923.33 = 53,897.96/x
  3. Step 3: Cross multiply
    99,219.08x = 136,923.33 × 53,897.96
  4. Step 4: Simplify right side
    99,219.08x = 7,379,887,478.79
  5. Step 5: Solve for x
    x = 7,379,887,478.79/99,219.08
  6. Step 6: Final answer
    x = 74,379.72

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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.