Home / 131,920.56-197,913.36-38,427.12

Finding the Fourth Proportional to 131,920.56, 197,913.36 and 38,427.12

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Solution

The fourth proportional to 131,920.56, 197,913.36 and 38,427.12 is: 57,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,920.56 : 197,913.36 = 38,427.12 : x
  2. Step 2: Convert to fraction form
    131,920.56/197,913.36 = 38,427.12/x
  3. Step 3: Cross multiply
    131,920.56x = 197,913.36 × 38,427.12
  4. Step 4: Simplify right side
    131,920.56x = 7,605,240,434.32
  5. Step 5: Solve for x
    x = 7,605,240,434.32/131,920.56
  6. Step 6: Final answer
    x = 57,650.15

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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.