Home / 131,728.37-197,593.07-31,888.40

Finding the Fourth Proportional to 131,728.37, 197,593.07 and 31,888.40

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Solution

The fourth proportional to 131,728.37, 197,593.07 and 31,888.40 is: 47,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,728.37 : 197,593.07 = 31,888.40 : x
  2. Step 2: Convert to fraction form
    131,728.37/197,593.07 = 31,888.40/x
  3. Step 3: Cross multiply
    131,728.37x = 197,593.07 × 31,888.40
  4. Step 4: Simplify right side
    131,728.37x = 6,300,925,705.98
  5. Step 5: Solve for x
    x = 6,300,925,705.98/131,728.37
  6. Step 6: Final answer
    x = 47,832.72

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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.