Home / 106,142.88-159,156.63-52,717.65

Finding the Fourth Proportional to 106,142.88, 159,156.63 and 52,717.65

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Solution

The fourth proportional to 106,142.88, 159,156.63 and 52,717.65 is: 79,047.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,142.88 : 159,156.63 = 52,717.65 : x
  2. Step 2: Convert to fraction form
    106,142.88/159,156.63 = 52,717.65/x
  3. Step 3: Cross multiply
    106,142.88x = 159,156.63 × 52,717.65
  4. Step 4: Simplify right side
    106,142.88x = 8,390,363,515.52
  5. Step 5: Solve for x
    x = 8,390,363,515.52/106,142.88
  6. Step 6: Final answer
    x = 79,047.82

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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.