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Finding the Fourth Proportional to 117,895, 162,711.56 and 75,543.76

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Solution

The fourth proportional to 117,895, 162,711.56 and 75,543.76 is: 104,260.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,895 : 162,711.56 = 75,543.76 : x
  2. Step 2: Convert to fraction form
    117,895/162,711.56 = 75,543.76/x
  3. Step 3: Cross multiply
    117,895x = 162,711.56 × 75,543.76
  4. Step 4: Simplify right side
    117,895x = 12,291,843,037.87
  5. Step 5: Solve for x
    x = 12,291,843,037.87/117,895
  6. Step 6: Final answer
    x = 104,260.94

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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.