Home / 152,207.42-209,954.40-100,524.83

Finding the Fourth Proportional to 152,207.42, 209,954.40 and 100,524.83

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Solution

The fourth proportional to 152,207.42, 209,954.40 and 100,524.83 is: 138,663.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,207.42 : 209,954.40 = 100,524.83 : x
  2. Step 2: Convert to fraction form
    152,207.42/209,954.40 = 100,524.83/x
  3. Step 3: Cross multiply
    152,207.42x = 209,954.40 × 100,524.83
  4. Step 4: Simplify right side
    152,207.42x = 21,105,630,367.75
  5. Step 5: Solve for x
    x = 21,105,630,367.75/152,207.42
  6. Step 6: Final answer
    x = 138,663.61

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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.