Home / 131,411.70-197,146.35-42,650.10

Finding the Fourth Proportional to 131,411.70, 197,146.35 and 42,650.10

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Solution

The fourth proportional to 131,411.70, 197,146.35 and 42,650.10 is: 63,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,411.70 : 197,146.35 = 42,650.10 : x
  2. Step 2: Convert to fraction form
    131,411.70/197,146.35 = 42,650.10/x
  3. Step 3: Cross multiply
    131,411.70x = 197,146.35 × 42,650.10
  4. Step 4: Simplify right side
    131,411.70x = 8,408,311,542.14
  5. Step 5: Solve for x
    x = 8,408,311,542.14/131,411.70
  6. Step 6: Final answer
    x = 63,984.50

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1.5x scale

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.