Home / 212,585.22-318,917.07-87,935.94

Finding the Fourth Proportional to 212,585.22, 318,917.07 and 87,935.94

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Solution

The fourth proportional to 212,585.22, 318,917.07 and 87,935.94 is: 131,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,585.22 : 318,917.07 = 87,935.94 : x
  2. Step 2: Convert to fraction form
    212,585.22/318,917.07 = 87,935.94/x
  3. Step 3: Cross multiply
    212,585.22x = 318,917.07 × 87,935.94
  4. Step 4: Simplify right side
    212,585.22x = 28,044,272,332.50
  5. Step 5: Solve for x
    x = 28,044,272,332.50/212,585.22
  6. Step 6: Final answer
    x = 131,920.14

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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.