Home / 112,087.50-154,680.75-61,787.58

Finding the Fourth Proportional to 112,087.50, 154,680.75 and 61,787.58

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Solution

The fourth proportional to 112,087.50, 154,680.75 and 61,787.58 is: 85,266.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,087.50 : 154,680.75 = 61,787.58 : x
  2. Step 2: Convert to fraction form
    112,087.50/154,680.75 = 61,787.58/x
  3. Step 3: Cross multiply
    112,087.50x = 154,680.75 × 61,787.58
  4. Step 4: Simplify right side
    112,087.50x = 9,557,349,215.09
  5. Step 5: Solve for x
    x = 9,557,349,215.09/112,087.50
  6. Step 6: Final answer
    x = 85,266.86

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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.