Home / 131,470.31-197,205.47-31,630.50

Finding the Fourth Proportional to 131,470.31, 197,205.47 and 31,630.50

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Solution

The fourth proportional to 131,470.31, 197,205.47 and 31,630.50 is: 47,445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,470.31 : 197,205.47 = 31,630.50 : x
  2. Step 2: Convert to fraction form
    131,470.31/197,205.47 = 31,630.50/x
  3. Step 3: Cross multiply
    131,470.31x = 197,205.47 × 31,630.50
  4. Step 4: Simplify right side
    131,470.31x = 6,237,708,318.82
  5. Step 5: Solve for x
    x = 6,237,708,318.82/131,470.31
  6. Step 6: Final answer
    x = 47,445.76

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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.