Home / 131,820.57-197,764.56-38,326.32

Finding the Fourth Proportional to 131,820.57, 197,764.56 and 38,326.32

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Solution

The fourth proportional to 131,820.57, 197,764.56 and 38,326.32 is: 57,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,820.57 : 197,764.56 = 38,326.32 : x
  2. Step 2: Convert to fraction form
    131,820.57/197,764.56 = 38,326.32/x
  3. Step 3: Cross multiply
    131,820.57x = 197,764.56 × 38,326.32
  4. Step 4: Simplify right side
    131,820.57x = 7,579,587,811.22
  5. Step 5: Solve for x
    x = 7,579,587,811.22/131,820.57
  6. Step 6: Final answer
    x = 57,499.28

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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.