Home / 133,015.72-183,565.59-72,590.26

Finding the Fourth Proportional to 133,015.72, 183,565.59 and 72,590.26

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Solution

The fourth proportional to 133,015.72, 183,565.59 and 72,590.26 is: 100,176.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,015.72 : 183,565.59 = 72,590.26 : x
  2. Step 2: Convert to fraction form
    133,015.72/183,565.59 = 72,590.26/x
  3. Step 3: Cross multiply
    133,015.72x = 183,565.59 × 72,590.26
  4. Step 4: Simplify right side
    133,015.72x = 13,325,073,542.20
  5. Step 5: Solve for x
    x = 13,325,073,542.20/133,015.72
  6. Step 6: Final answer
    x = 100,176.69

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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.