Home / 137,299.80-205,959.06-42,538.35

Finding the Fourth Proportional to 137,299.80, 205,959.06 and 42,538.35

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Solution

The fourth proportional to 137,299.80, 205,959.06 and 42,538.35 is: 63,810.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,299.80 : 205,959.06 = 42,538.35 : x
  2. Step 2: Convert to fraction form
    137,299.80/205,959.06 = 42,538.35/x
  3. Step 3: Cross multiply
    137,299.80x = 205,959.06 × 42,538.35
  4. Step 4: Simplify right side
    137,299.80x = 8,761,158,579.95
  5. Step 5: Solve for x
    x = 8,761,158,579.95/137,299.80
  6. Step 6: Final answer
    x = 63,810.42

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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.