Home / 158,867.50-219,238.66-87,249

Finding the Fourth Proportional to 158,867.50, 219,238.66 and 87,249

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Solution

The fourth proportional to 158,867.50, 219,238.66 and 87,249 is: 120,404.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,867.50 : 219,238.66 = 87,249 : x
  2. Step 2: Convert to fraction form
    158,867.50/219,238.66 = 87,249/x
  3. Step 3: Cross multiply
    158,867.50x = 219,238.66 × 87,249
  4. Step 4: Simplify right side
    158,867.50x = 19,128,353,846.34
  5. Step 5: Solve for x
    x = 19,128,353,846.34/158,867.50
  6. Step 6: Final answer
    x = 120,404.45

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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.