Home / 141,288.12-212,004.93-78,096.51

Finding the Fourth Proportional to 141,288.12, 212,004.93 and 78,096.51

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Solution

The fourth proportional to 141,288.12, 212,004.93 and 78,096.51 is: 117,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,288.12 : 212,004.93 = 78,096.51 : x
  2. Step 2: Convert to fraction form
    141,288.12/212,004.93 = 78,096.51/x
  3. Step 3: Cross multiply
    141,288.12x = 212,004.93 × 78,096.51
  4. Step 4: Simplify right side
    141,288.12x = 16,556,845,135.79
  5. Step 5: Solve for x
    x = 16,556,845,135.79/141,288.12
  6. Step 6: Final answer
    x = 117,184.98

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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.