Home / 141,876.48-212,439.22-85,641.42

Finding the Fourth Proportional to 141,876.48, 212,439.22 and 85,641.42

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Solution

The fourth proportional to 141,876.48, 212,439.22 and 85,641.42 is: 128,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,876.48 : 212,439.22 = 85,641.42 : x
  2. Step 2: Convert to fraction form
    141,876.48/212,439.22 = 85,641.42/x
  3. Step 3: Cross multiply
    141,876.48x = 212,439.22 × 85,641.42
  4. Step 4: Simplify right side
    141,876.48x = 18,193,596,464.49
  5. Step 5: Solve for x
    x = 18,193,596,464.49/141,876.48
  6. Step 6: Final answer
    x = 128,235.47

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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.