Home / 131,627.63-197,316.91-81,057.74

Finding the Fourth Proportional to 131,627.63, 197,316.91 and 81,057.74

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Solution

The fourth proportional to 131,627.63, 197,316.91 and 81,057.74 is: 121,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,627.63 : 197,316.91 = 81,057.74 : x
  2. Step 2: Convert to fraction form
    131,627.63/197,316.91 = 81,057.74/x
  3. Step 3: Cross multiply
    131,627.63x = 197,316.91 × 81,057.74
  4. Step 4: Simplify right side
    131,627.63x = 15,994,062,458.07
  5. Step 5: Solve for x
    x = 15,994,062,458.07/131,627.63
  6. Step 6: Final answer
    x = 121,509.92

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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.