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Finding the Fourth Proportional to 101,912.72, 152,702.63 and 61,943.93

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Solution

The fourth proportional to 101,912.72, 152,702.63 and 61,943.93 is: 92,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,912.72 : 152,702.63 = 61,943.93 : x
  2. Step 2: Convert to fraction form
    101,912.72/152,702.63 = 61,943.93/x
  3. Step 3: Cross multiply
    101,912.72x = 152,702.63 × 61,943.93
  4. Step 4: Simplify right side
    101,912.72x = 9,459,000,713.82
  5. Step 5: Solve for x
    x = 9,459,000,713.82/101,912.72
  6. Step 6: Final answer
    x = 92,814.72

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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.