Home / 137,018.20-205,195.10-94,779.76

Finding the Fourth Proportional to 137,018.20, 205,195.10 and 94,779.76

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Solution

The fourth proportional to 137,018.20, 205,195.10 and 94,779.76 is: 141,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,018.20 : 205,195.10 = 94,779.76 : x
  2. Step 2: Convert to fraction form
    137,018.20/205,195.10 = 94,779.76/x
  3. Step 3: Cross multiply
    137,018.20x = 205,195.10 × 94,779.76
  4. Step 4: Simplify right side
    137,018.20x = 19,448,342,331.18
  5. Step 5: Solve for x
    x = 19,448,342,331.18/137,018.20
  6. Step 6: Final answer
    x = 141,939.85

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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.