Home / 112,229.86-154,871.71-61,239.55

Finding the Fourth Proportional to 112,229.86, 154,871.71 and 61,239.55

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Solution

The fourth proportional to 112,229.86, 154,871.71 and 61,239.55 is: 84,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,229.86 : 154,871.71 = 61,239.55 : x
  2. Step 2: Convert to fraction form
    112,229.86/154,871.71 = 61,239.55/x
  3. Step 3: Cross multiply
    112,229.86x = 154,871.71 × 61,239.55
  4. Step 4: Simplify right side
    112,229.86x = 9,484,273,828.13
  5. Step 5: Solve for x
    x = 9,484,273,828.13/112,229.86
  6. Step 6: Final answer
    x = 84,507.58

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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.