Home / 141,330.42-212,026.77-78,242.58

Finding the Fourth Proportional to 141,330.42, 212,026.77 and 78,242.58

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Solution

The fourth proportional to 141,330.42, 212,026.77 and 78,242.58 is: 117,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,330.42 : 212,026.77 = 78,242.58 : x
  2. Step 2: Convert to fraction form
    141,330.42/212,026.77 = 78,242.58/x
  3. Step 3: Cross multiply
    141,330.42x = 212,026.77 × 78,242.58
  4. Step 4: Simplify right side
    141,330.42x = 16,589,521,513.87
  5. Step 5: Solve for x
    x = 16,589,521,513.87/141,330.42
  6. Step 6: Final answer
    x = 117,381.11

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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.