Home / 153,590.72-211,874.40-105,761.12

Finding the Fourth Proportional to 153,590.72, 211,874.40 and 105,761.12

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Solution

The fourth proportional to 153,590.72, 211,874.40 and 105,761.12 is: 145,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,590.72 : 211,874.40 = 105,761.12 : x
  2. Step 2: Convert to fraction form
    153,590.72/211,874.40 = 105,761.12/x
  3. Step 3: Cross multiply
    153,590.72x = 211,874.40 × 105,761.12
  4. Step 4: Simplify right side
    153,590.72x = 22,408,073,843.33
  5. Step 5: Solve for x
    x = 22,408,073,843.33/153,590.72
  6. Step 6: Final answer
    x = 145,894.71

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1.5x scale

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.