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Finding the Fourth Proportional to 131,507.66, 197,401.88 and 56,664.74

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Solution

The fourth proportional to 131,507.66, 197,401.88 and 56,664.74 is: 85,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,507.66 : 197,401.88 = 56,664.74 : x
  2. Step 2: Convert to fraction form
    131,507.66/197,401.88 = 56,664.74/x
  3. Step 3: Cross multiply
    131,507.66x = 197,401.88 × 56,664.74
  4. Step 4: Simplify right side
    131,507.66x = 11,185,725,360.36
  5. Step 5: Solve for x
    x = 11,185,725,360.36/131,507.66
  6. Step 6: Final answer
    x = 85,057.60

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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.