Home / 109,658.07-151,326.81-61,913.43

Finding the Fourth Proportional to 109,658.07, 151,326.81 and 61,913.43

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Solution

The fourth proportional to 109,658.07, 151,326.81 and 61,913.43 is: 85,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,658.07 : 151,326.81 = 61,913.43 : x
  2. Step 2: Convert to fraction form
    109,658.07/151,326.81 = 61,913.43/x
  3. Step 3: Cross multiply
    109,658.07x = 151,326.81 × 61,913.43
  4. Step 4: Simplify right side
    109,658.07x = 9,369,161,858.06
  5. Step 5: Solve for x
    x = 9,369,161,858.06/109,658.07
  6. Step 6: Final answer
    x = 85,439.78

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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.