Home / 245,610.78-368,416.18-87,829.66

Finding the Fourth Proportional to 245,610.78, 368,416.18 and 87,829.66

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Solution

The fourth proportional to 245,610.78, 368,416.18 and 87,829.66 is: 131,744.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,610.78 : 368,416.18 = 87,829.66 : x
  2. Step 2: Convert to fraction form
    245,610.78/368,416.18 = 87,829.66/x
  3. Step 3: Cross multiply
    245,610.78x = 368,416.18 × 87,829.66
  4. Step 4: Simplify right side
    245,610.78x = 32,357,867,827.90
  5. Step 5: Solve for x
    x = 32,357,867,827.90/245,610.78
  6. Step 6: Final answer
    x = 131,744.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.