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Finding the Fourth Proportional to 100,577.70, 150,647.85 and 61,065.90

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Solution

The fourth proportional to 100,577.70, 150,647.85 and 61,065.90 is: 91,466.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,577.70 : 150,647.85 = 61,065.90 : x
  2. Step 2: Convert to fraction form
    100,577.70/150,647.85 = 61,065.90/x
  3. Step 3: Cross multiply
    100,577.70x = 150,647.85 × 61,065.90
  4. Step 4: Simplify right side
    100,577.70x = 9,199,446,543.32
  5. Step 5: Solve for x
    x = 9,199,446,543.32/100,577.70
  6. Step 6: Final answer
    x = 91,466.07

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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.