Home / 131,397.12-197,078.40-37,912.32

Finding the Fourth Proportional to 131,397.12, 197,078.40 and 37,912.32

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Solution

The fourth proportional to 131,397.12, 197,078.40 and 37,912.32 is: 56,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397.12 : 197,078.40 = 37,912.32 : x
  2. Step 2: Convert to fraction form
    131,397.12/197,078.40 = 37,912.32/x
  3. Step 3: Cross multiply
    131,397.12x = 197,078.40 × 37,912.32
  4. Step 4: Simplify right side
    131,397.12x = 7,471,699,365.89
  5. Step 5: Solve for x
    x = 7,471,699,365.89/131,397.12
  6. Step 6: Final answer
    x = 56,863.49

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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.