Home / 76,400.02-113,946.94-67,101.22

Finding the Fourth Proportional to 76,400.02, 113,946.94 and 67,101.22

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Solution

The fourth proportional to 76,400.02, 113,946.94 and 67,101.22 is: 100,078.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,400.02 : 113,946.94 = 67,101.22 : x
  2. Step 2: Convert to fraction form
    76,400.02/113,946.94 = 67,101.22/x
  3. Step 3: Cross multiply
    76,400.02x = 113,946.94 × 67,101.22
  4. Step 4: Simplify right side
    76,400.02x = 7,645,978,689.27
  5. Step 5: Solve for x
    x = 7,645,978,689.27/76,400.02
  6. Step 6: Final answer
    x = 100,078.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.