Home / 202,378.72-279,283.02-111,734.86

Finding the Fourth Proportional to 202,378.72, 279,283.02 and 111,734.86

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Solution

The fourth proportional to 202,378.72, 279,283.02 and 111,734.86 is: 154,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,378.72 : 279,283.02 = 111,734.86 : x
  2. Step 2: Convert to fraction form
    202,378.72/279,283.02 = 111,734.86/x
  3. Step 3: Cross multiply
    202,378.72x = 279,283.02 × 111,734.86
  4. Step 4: Simplify right side
    202,378.72x = 31,205,649,140.08
  5. Step 5: Solve for x
    x = 31,205,649,140.08/202,378.72
  6. Step 6: Final answer
    x = 154,194.32

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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.