Home / 109,122.39-150,588.32-61,374.71

Finding the Fourth Proportional to 109,122.39, 150,588.32 and 61,374.71

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Solution

The fourth proportional to 109,122.39, 150,588.32 and 61,374.71 is: 84,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,122.39 : 150,588.32 = 61,374.71 : x
  2. Step 2: Convert to fraction form
    109,122.39/150,588.32 = 61,374.71/x
  3. Step 3: Cross multiply
    109,122.39x = 150,588.32 × 61,374.71
  4. Step 4: Simplify right side
    109,122.39x = 9,242,314,538.98
  5. Step 5: Solve for x
    x = 9,242,314,538.98/109,122.39
  6. Step 6: Final answer
    x = 84,696.78

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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.