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Finding the Fourth Proportional to 98,571.46, 135,887 and 70,227.94

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Solution

The fourth proportional to 98,571.46, 135,887 and 70,227.94 is: 96,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,571.46 : 135,887 = 70,227.94 : x
  2. Step 2: Convert to fraction form
    98,571.46/135,887 = 70,227.94/x
  3. Step 3: Cross multiply
    98,571.46x = 135,887 × 70,227.94
  4. Step 4: Simplify right side
    98,571.46x = 9,543,064,082.78
  5. Step 5: Solve for x
    x = 9,543,064,082.78/98,571.46
  6. Step 6: Final answer
    x = 96,813.66

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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.