Home / 112,163.50-154,788.87-61,865.74

Finding the Fourth Proportional to 112,163.50, 154,788.87 and 61,865.74

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Solution

The fourth proportional to 112,163.50, 154,788.87 and 61,865.74 is: 85,376.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,163.50 : 154,788.87 = 61,865.74 : x
  2. Step 2: Convert to fraction form
    112,163.50/154,788.87 = 61,865.74/x
  3. Step 3: Cross multiply
    112,163.50x = 154,788.87 × 61,865.74
  4. Step 4: Simplify right side
    112,163.50x = 9,576,127,986.31
  5. Step 5: Solve for x
    x = 9,576,127,986.31/112,163.50
  6. Step 6: Final answer
    x = 85,376.51

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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.