Home / 163,895.78-226,123.32-99,390.86

Finding the Fourth Proportional to 163,895.78, 226,123.32 and 99,390.86

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Solution

The fourth proportional to 163,895.78, 226,123.32 and 99,390.86 is: 137,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,895.78 : 226,123.32 = 99,390.86 : x
  2. Step 2: Convert to fraction form
    163,895.78/226,123.32 = 99,390.86/x
  3. Step 3: Cross multiply
    163,895.78x = 226,123.32 × 99,390.86
  4. Step 4: Simplify right side
    163,895.78x = 22,474,591,240.86
  5. Step 5: Solve for x
    x = 22,474,591,240.86/163,895.78
  6. Step 6: Final answer
    x = 137,127.33

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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.