Home / 109,627.84-151,286.88-61,881.76

Finding the Fourth Proportional to 109,627.84, 151,286.88 and 61,881.76

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Solution

The fourth proportional to 109,627.84, 151,286.88 and 61,881.76 is: 85,397.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,627.84 : 151,286.88 = 61,881.76 : x
  2. Step 2: Convert to fraction form
    109,627.84/151,286.88 = 61,881.76/x
  3. Step 3: Cross multiply
    109,627.84x = 151,286.88 × 61,881.76
  4. Step 4: Simplify right side
    109,627.84x = 9,361,898,399.31
  5. Step 5: Solve for x
    x = 9,361,898,399.31/109,627.84
  6. Step 6: Final answer
    x = 85,397.09

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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.