Home / 109,178.60-150,669.41-61,433.64

Finding the Fourth Proportional to 109,178.60, 150,669.41 and 61,433.64

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Solution

The fourth proportional to 109,178.60, 150,669.41 and 61,433.64 is: 84,780.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,178.60 : 150,669.41 = 61,433.64 : x
  2. Step 2: Convert to fraction form
    109,178.60/150,669.41 = 61,433.64/x
  3. Step 3: Cross multiply
    109,178.60x = 150,669.41 × 61,433.64
  4. Step 4: Simplify right side
    109,178.60x = 9,256,170,292.95
  5. Step 5: Solve for x
    x = 9,256,170,292.95/109,178.60
  6. Step 6: Final answer
    x = 84,780.08

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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.