Home / 208,803.96-288,146.40-122,772.66

Finding the Fourth Proportional to 208,803.96, 288,146.40 and 122,772.66

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Solution

The fourth proportional to 208,803.96, 288,146.40 and 122,772.66 is: 169,424.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,803.96 : 288,146.40 = 122,772.66 : x
  2. Step 2: Convert to fraction form
    208,803.96/288,146.40 = 122,772.66/x
  3. Step 3: Cross multiply
    208,803.96x = 288,146.40 × 122,772.66
  4. Step 4: Simplify right side
    208,803.96x = 35,376,499,997.42
  5. Step 5: Solve for x
    x = 35,376,499,997.42/208,803.96
  6. Step 6: Final answer
    x = 169,424.47

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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.