Home / 133,015.90-183,565.85-72,590.43

Finding the Fourth Proportional to 133,015.90, 183,565.85 and 72,590.43

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Solution

The fourth proportional to 133,015.90, 183,565.85 and 72,590.43 is: 100,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,015.90 : 183,565.85 = 72,590.43 : x
  2. Step 2: Convert to fraction form
    133,015.90/183,565.85 = 72,590.43/x
  3. Step 3: Cross multiply
    133,015.90x = 183,565.85 × 72,590.43
  4. Step 4: Simplify right side
    133,015.90x = 13,325,123,858.49
  5. Step 5: Solve for x
    x = 13,325,123,858.49/133,015.90
  6. Step 6: Final answer
    x = 100,176.92

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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.