Home / 112,690.41-155,512.31-61,703.37

Finding the Fourth Proportional to 112,690.41, 155,512.31 and 61,703.37

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Solution

The fourth proportional to 112,690.41, 155,512.31 and 61,703.37 is: 85,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,690.41 : 155,512.31 = 61,703.37 : x
  2. Step 2: Convert to fraction form
    112,690.41/155,512.31 = 61,703.37/x
  3. Step 3: Cross multiply
    112,690.41x = 155,512.31 × 61,703.37
  4. Step 4: Simplify right side
    112,690.41x = 9,595,633,294.97
  5. Step 5: Solve for x
    x = 9,595,633,294.97/112,690.41
  6. Step 6: Final answer
    x = 85,150.40

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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.