Home / 141,963.10-212,944.65-42,138.70

Finding the Fourth Proportional to 141,963.10, 212,944.65 and 42,138.70

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Solution

The fourth proportional to 141,963.10, 212,944.65 and 42,138.70 is: 63,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,963.10 : 212,944.65 = 42,138.70 : x
  2. Step 2: Convert to fraction form
    141,963.10/212,944.65 = 42,138.70/x
  3. Step 3: Cross multiply
    141,963.10x = 212,944.65 × 42,138.70
  4. Step 4: Simplify right side
    141,963.10x = 8,973,210,722.96
  5. Step 5: Solve for x
    x = 8,973,210,722.96/141,963.10
  6. Step 6: Final answer
    x = 63,208.05

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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.