Home / 141,315.39-212,004.23-78,227.53

Finding the Fourth Proportional to 141,315.39, 212,004.23 and 78,227.53

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Solution

The fourth proportional to 141,315.39, 212,004.23 and 78,227.53 is: 117,358.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,315.39 : 212,004.23 = 78,227.53 : x
  2. Step 2: Convert to fraction form
    141,315.39/212,004.23 = 78,227.53/x
  3. Step 3: Cross multiply
    141,315.39x = 212,004.23 × 78,227.53
  4. Step 4: Simplify right side
    141,315.39x = 16,584,566,341.30
  5. Step 5: Solve for x
    x = 16,584,566,341.30/141,315.39
  6. Step 6: Final answer
    x = 117,358.53

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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.