Home / 112,939.78-169,325.41-67,950.60

Finding the Fourth Proportional to 112,939.78, 169,325.41 and 67,950.60

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Solution

The fourth proportional to 112,939.78, 169,325.41 and 67,950.60 is: 101,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,939.78 : 169,325.41 = 67,950.60 : x
  2. Step 2: Convert to fraction form
    112,939.78/169,325.41 = 67,950.60/x
  3. Step 3: Cross multiply
    112,939.78x = 169,325.41 × 67,950.60
  4. Step 4: Simplify right side
    112,939.78x = 11,505,762,718.42
  5. Step 5: Solve for x
    x = 11,505,762,718.42/112,939.78
  6. Step 6: Final answer
    x = 101,875.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.