Home / 90,837.10-136,201.65-55,801.90

Finding the Fourth Proportional to 90,837.10, 136,201.65 and 55,801.90

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Solution

The fourth proportional to 90,837.10, 136,201.65 and 55,801.90 is: 83,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,837.10 : 136,201.65 = 55,801.90 : x
  2. Step 2: Convert to fraction form
    90,837.10/136,201.65 = 55,801.90/x
  3. Step 3: Cross multiply
    90,837.10x = 136,201.65 × 55,801.90
  4. Step 4: Simplify right side
    90,837.10x = 7,600,310,853.14
  5. Step 5: Solve for x
    x = 7,600,310,853.14/90,837.10
  6. Step 6: Final answer
    x = 83,669.68

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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.