Home / 99,074.39-136,722.66-56,633.83

Finding the Fourth Proportional to 99,074.39, 136,722.66 and 56,633.83

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Solution

The fourth proportional to 99,074.39, 136,722.66 and 56,633.83 is: 78,154.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,074.39 : 136,722.66 = 56,633.83 : x
  2. Step 2: Convert to fraction form
    99,074.39/136,722.66 = 56,633.83/x
  3. Step 3: Cross multiply
    99,074.39x = 136,722.66 × 56,633.83
  4. Step 4: Simplify right side
    99,074.39x = 7,743,128,257.75
  5. Step 5: Solve for x
    x = 7,743,128,257.75/99,074.39
  6. Step 6: Final answer
    x = 78,154.69

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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.