Home / 152,026.96-209,808.78-87,515.92

Finding the Fourth Proportional to 152,026.96, 209,808.78 and 87,515.92

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Solution

The fourth proportional to 152,026.96, 209,808.78 and 87,515.92 is: 120,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,026.96 : 209,808.78 = 87,515.92 : x
  2. Step 2: Convert to fraction form
    152,026.96/209,808.78 = 87,515.92/x
  3. Step 3: Cross multiply
    152,026.96x = 209,808.78 × 87,515.92
  4. Step 4: Simplify right side
    152,026.96x = 18,361,608,405.78
  5. Step 5: Solve for x
    x = 18,361,608,405.78/152,026.96
  6. Step 6: Final answer
    x = 120,778.63

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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.