Home / 112,418.87-168,425.24-70,278.89

Finding the Fourth Proportional to 112,418.87, 168,425.24 and 70,278.89

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Solution

The fourth proportional to 112,418.87, 168,425.24 and 70,278.89 is: 105,291.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,418.87 : 168,425.24 = 70,278.89 : x
  2. Step 2: Convert to fraction form
    112,418.87/168,425.24 = 70,278.89/x
  3. Step 3: Cross multiply
    112,418.87x = 168,425.24 × 70,278.89
  4. Step 4: Simplify right side
    112,418.87x = 11,836,737,721.66
  5. Step 5: Solve for x
    x = 11,836,737,721.66/112,418.87
  6. Step 6: Final answer
    x = 105,291.38

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1.5x scale

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.