Home / 131,088.55-196,829.76-74,992

Finding the Fourth Proportional to 131,088.55, 196,829.76 and 74,992

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Solution

The fourth proportional to 131,088.55, 196,829.76 and 74,992 is: 112,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,088.55 : 196,829.76 = 74,992 : x
  2. Step 2: Convert to fraction form
    131,088.55/196,829.76 = 74,992/x
  3. Step 3: Cross multiply
    131,088.55x = 196,829.76 × 74,992
  4. Step 4: Simplify right side
    131,088.55x = 14,760,657,361.92
  5. Step 5: Solve for x
    x = 14,760,657,361.92/131,088.55
  6. Step 6: Final answer
    x = 112,600.66

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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.