Home / 112,621.28-168,645.99-67,614.65

Finding the Fourth Proportional to 112,621.28, 168,645.99 and 67,614.65

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Solution

The fourth proportional to 112,621.28, 168,645.99 and 67,614.65 is: 101,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,621.28 : 168,645.99 = 67,614.65 : x
  2. Step 2: Convert to fraction form
    112,621.28/168,645.99 = 67,614.65/x
  3. Step 3: Cross multiply
    112,621.28x = 168,645.99 × 67,614.65
  4. Step 4: Simplify right side
    112,621.28x = 11,402,938,744.52
  5. Step 5: Solve for x
    x = 11,402,938,744.52/112,621.28
  6. Step 6: Final answer
    x = 101,250.30

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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.