Home / 112,261.80-154,917.42-66,916.41

Finding the Fourth Proportional to 112,261.80, 154,917.42 and 66,916.41

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Solution

The fourth proportional to 112,261.80, 154,917.42 and 66,916.41 is: 92,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,261.80 : 154,917.42 = 66,916.41 : x
  2. Step 2: Convert to fraction form
    112,261.80/154,917.42 = 66,916.41/x
  3. Step 3: Cross multiply
    112,261.80x = 154,917.42 × 66,916.41
  4. Step 4: Simplify right side
    112,261.80x = 10,366,517,592.86
  5. Step 5: Solve for x
    x = 10,366,517,592.86/112,261.80
  6. Step 6: Final answer
    x = 92,342.34

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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.