Home / 109,655.37-151,315.97-61,913.43

Finding the Fourth Proportional to 109,655.37, 151,315.97 and 61,913.43

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Solution

The fourth proportional to 109,655.37, 151,315.97 and 61,913.43 is: 85,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,655.37 : 151,315.97 = 61,913.43 : x
  2. Step 2: Convert to fraction form
    109,655.37/151,315.97 = 61,913.43/x
  3. Step 3: Cross multiply
    109,655.37x = 151,315.97 × 61,913.43
  4. Step 4: Simplify right side
    109,655.37x = 9,368,490,406.91
  5. Step 5: Solve for x
    x = 9,368,490,406.91/109,655.37
  6. Step 6: Final answer
    x = 85,435.76

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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.