Home / 141,926.19-212,648.28-85,648.04

Finding the Fourth Proportional to 141,926.19, 212,648.28 and 85,648.04

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Solution

The fourth proportional to 141,926.19, 212,648.28 and 85,648.04 is: 128,326.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,926.19 : 212,648.28 = 85,648.04 : x
  2. Step 2: Convert to fraction form
    141,926.19/212,648.28 = 85,648.04/x
  3. Step 3: Cross multiply
    141,926.19x = 212,648.28 × 85,648.04
  4. Step 4: Simplify right side
    141,926.19x = 18,212,908,527.04
  5. Step 5: Solve for x
    x = 18,212,908,527.04/141,926.19
  6. Step 6: Final answer
    x = 128,326.63

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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.