Home / 109,137.27-150,607.95-61,390.66

Finding the Fourth Proportional to 109,137.27, 150,607.95 and 61,390.66

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Solution

The fourth proportional to 109,137.27, 150,607.95 and 61,390.66 is: 84,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,137.27 : 150,607.95 = 61,390.66 : x
  2. Step 2: Convert to fraction form
    109,137.27/150,607.95 = 61,390.66/x
  3. Step 3: Cross multiply
    109,137.27x = 150,607.95 × 61,390.66
  4. Step 4: Simplify right side
    109,137.27x = 9,245,921,451.75
  5. Step 5: Solve for x
    x = 9,245,921,451.75/109,137.27
  6. Step 6: Final answer
    x = 84,718.28

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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.