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Finding the Fourth Proportional to 141,903.80, 212,747.70 and 71,833.40

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Solution

The fourth proportional to 141,903.80, 212,747.70 and 71,833.40 is: 107,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,903.80 : 212,747.70 = 71,833.40 : x
  2. Step 2: Convert to fraction form
    141,903.80/212,747.70 = 71,833.40/x
  3. Step 3: Cross multiply
    141,903.80x = 212,747.70 × 71,833.40
  4. Step 4: Simplify right side
    141,903.80x = 15,282,390,633.18
  5. Step 5: Solve for x
    x = 15,282,390,633.18/141,903.80
  6. Step 6: Final answer
    x = 107,695.43

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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.