Home / 136,672.38-205,017.21-57,776.22

Finding the Fourth Proportional to 136,672.38, 205,017.21 and 57,776.22

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Solution

The fourth proportional to 136,672.38, 205,017.21 and 57,776.22 is: 86,667.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,672.38 : 205,017.21 = 57,776.22 : x
  2. Step 2: Convert to fraction form
    136,672.38/205,017.21 = 57,776.22/x
  3. Step 3: Cross multiply
    136,672.38x = 205,017.21 × 57,776.22
  4. Step 4: Simplify right side
    136,672.38x = 11,845,119,428.75
  5. Step 5: Solve for x
    x = 11,845,119,428.75/136,672.38
  6. Step 6: Final answer
    x = 86,667.98

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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.