Home / 106,165.04-159,248.79-42,138.90

Finding the Fourth Proportional to 106,165.04, 159,248.79 and 42,138.90

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Solution

The fourth proportional to 106,165.04, 159,248.79 and 42,138.90 is: 63,208.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,165.04 : 159,248.79 = 42,138.90 : x
  2. Step 2: Convert to fraction form
    106,165.04/159,248.79 = 42,138.90/x
  3. Step 3: Cross multiply
    106,165.04x = 159,248.79 × 42,138.90
  4. Step 4: Simplify right side
    106,165.04x = 6,710,568,836.93
  5. Step 5: Solve for x
    x = 6,710,568,836.93/106,165.04
  6. Step 6: Final answer
    x = 63,208.84

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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.