Home / 106,238.81-159,307.38-61,878.21

Finding the Fourth Proportional to 106,238.81, 159,307.38 and 61,878.21

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Solution

The fourth proportional to 106,238.81, 159,307.38 and 61,878.21 is: 92,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,238.81 : 159,307.38 = 61,878.21 : x
  2. Step 2: Convert to fraction form
    106,238.81/159,307.38 = 61,878.21/x
  3. Step 3: Cross multiply
    106,238.81x = 159,307.38 × 61,878.21
  4. Step 4: Simplify right side
    106,238.81x = 9,857,655,514.19
  5. Step 5: Solve for x
    x = 9,857,655,514.19/106,238.81
  6. Step 6: Final answer
    x = 92,787.71

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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.