Home / 141,926.17-212,648.26-85,648.03

Finding the Fourth Proportional to 141,926.17, 212,648.26 and 85,648.03

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Solution

The fourth proportional to 141,926.17, 212,648.26 and 85,648.03 is: 128,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,926.17 : 212,648.26 = 85,648.03 : x
  2. Step 2: Convert to fraction form
    141,926.17/212,648.26 = 85,648.03/x
  3. Step 3: Cross multiply
    141,926.17x = 212,648.26 × 85,648.03
  4. Step 4: Simplify right side
    141,926.17x = 18,212,903,488.69
  5. Step 5: Solve for x
    x = 18,212,903,488.69/141,926.17
  6. Step 6: Final answer
    x = 128,326.60

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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.