Home / 112,398.50-168,593.81-28,159.38

Finding the Fourth Proportional to 112,398.50, 168,593.81 and 28,159.38

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Solution

The fourth proportional to 112,398.50, 168,593.81 and 28,159.38 is: 42,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,398.50 : 168,593.81 = 28,159.38 : x
  2. Step 2: Convert to fraction form
    112,398.50/168,593.81 = 28,159.38/x
  3. Step 3: Cross multiply
    112,398.50x = 168,593.81 × 28,159.38
  4. Step 4: Simplify right side
    112,398.50x = 4,747,497,020.64
  5. Step 5: Solve for x
    x = 4,747,497,020.64/112,398.50
  6. Step 6: Final answer
    x = 42,238.08

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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.