Home / 112,346.47-168,428.33-76,717.94

Finding the Fourth Proportional to 112,346.47, 168,428.33 and 76,717.94

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Solution

The fourth proportional to 112,346.47, 168,428.33 and 76,717.94 is: 115,014.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,346.47 : 168,428.33 = 76,717.94 : x
  2. Step 2: Convert to fraction form
    112,346.47/168,428.33 = 76,717.94/x
  3. Step 3: Cross multiply
    112,346.47x = 168,428.33 × 76,717.94
  4. Step 4: Simplify right side
    112,346.47x = 12,921,474,131.65
  5. Step 5: Solve for x
    x = 12,921,474,131.65/112,346.47
  6. Step 6: Final answer
    x = 115,014.51

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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.