Home / 99,157.12-136,836.07-53,834.21

Finding the Fourth Proportional to 99,157.12, 136,836.07 and 53,834.21

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Solution

The fourth proportional to 99,157.12, 136,836.07 and 53,834.21 is: 74,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,157.12 : 136,836.07 = 53,834.21 : x
  2. Step 2: Convert to fraction form
    99,157.12/136,836.07 = 53,834.21/x
  3. Step 3: Cross multiply
    99,157.12x = 136,836.07 × 53,834.21
  4. Step 4: Simplify right side
    99,157.12x = 7,366,461,727.95
  5. Step 5: Solve for x
    x = 7,366,461,727.95/99,157.12
  6. Step 6: Final answer
    x = 74,290.80

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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.