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Finding the Fourth Proportional to 97,163, 134,143.26 and 63,687.32

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Solution

The fourth proportional to 97,163, 134,143.26 and 63,687.32 is: 87,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,163 : 134,143.26 = 63,687.32 : x
  2. Step 2: Convert to fraction form
    97,163/134,143.26 = 63,687.32/x
  3. Step 3: Cross multiply
    97,163x = 134,143.26 × 63,687.32
  4. Step 4: Simplify right side
    97,163x = 8,543,224,725.46
  5. Step 5: Solve for x
    x = 8,543,224,725.46/97,163
  6. Step 6: Final answer
    x = 87,926.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.