Home / 112,215.58-154,913.62-69,787.78

Finding the Fourth Proportional to 112,215.58, 154,913.62 and 69,787.78

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Solution

The fourth proportional to 112,215.58, 154,913.62 and 69,787.78 is: 96,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,215.58 : 154,913.62 = 69,787.78 : x
  2. Step 2: Convert to fraction form
    112,215.58/154,913.62 = 69,787.78/x
  3. Step 3: Cross multiply
    112,215.58x = 154,913.62 × 69,787.78
  4. Step 4: Simplify right side
    112,215.58x = 10,811,077,282.62
  5. Step 5: Solve for x
    x = 10,811,077,282.62/112,215.58
  6. Step 6: Final answer
    x = 96,342.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.