Home / 99,690.49-149,535.72-29,569.20

Finding the Fourth Proportional to 99,690.49, 149,535.72 and 29,569.20

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Solution

The fourth proportional to 99,690.49, 149,535.72 and 29,569.20 is: 44,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,690.49 : 149,535.72 = 29,569.20 : x
  2. Step 2: Convert to fraction form
    99,690.49/149,535.72 = 29,569.20/x
  3. Step 3: Cross multiply
    99,690.49x = 149,535.72 × 29,569.20
  4. Step 4: Simplify right side
    99,690.49x = 4,421,651,611.82
  5. Step 5: Solve for x
    x = 4,421,651,611.82/99,690.49
  6. Step 6: Final answer
    x = 44,353.80

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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.