Home / 131,427.90-197,141.85-47,228.40

Finding the Fourth Proportional to 131,427.90, 197,141.85 and 47,228.40

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Solution

The fourth proportional to 131,427.90, 197,141.85 and 47,228.40 is: 70,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.90 : 197,141.85 = 47,228.40 : x
  2. Step 2: Convert to fraction form
    131,427.90/197,141.85 = 47,228.40/x
  3. Step 3: Cross multiply
    131,427.90x = 197,141.85 × 47,228.40
  4. Step 4: Simplify right side
    131,427.90x = 9,310,694,148.54
  5. Step 5: Solve for x
    x = 9,310,694,148.54/131,427.90
  6. Step 6: Final answer
    x = 70,842.60

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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.