Home / 140,015.40-209,890.30-55,827.29

Finding the Fourth Proportional to 140,015.40, 209,890.30 and 55,827.29

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Solution

The fourth proportional to 140,015.40, 209,890.30 and 55,827.29 is: 83,687.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,015.40 : 209,890.30 = 55,827.29 : x
  2. Step 2: Convert to fraction form
    140,015.40/209,890.30 = 55,827.29/x
  3. Step 3: Cross multiply
    140,015.40x = 209,890.30 × 55,827.29
  4. Step 4: Simplify right side
    140,015.40x = 11,717,606,646.29
  5. Step 5: Solve for x
    x = 11,717,606,646.29/140,015.40
  6. Step 6: Final answer
    x = 83,687.98

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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.