Home / 208,822.64-288,414.48-137,521.36

Finding the Fourth Proportional to 208,822.64, 288,414.48 and 137,521.36

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Solution

The fourth proportional to 208,822.64, 288,414.48 and 137,521.36 is: 189,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,822.64 : 288,414.48 = 137,521.36 : x
  2. Step 2: Convert to fraction form
    208,822.64/288,414.48 = 137,521.36/x
  3. Step 3: Cross multiply
    208,822.64x = 288,414.48 × 137,521.36
  4. Step 4: Simplify right side
    208,822.64x = 39,663,151,533.29
  5. Step 5: Solve for x
    x = 39,663,151,533.29/208,822.64
  6. Step 6: Final answer
    x = 189,937.03

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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.