Home / 99,172.58-136,855.86-53,850.68

Finding the Fourth Proportional to 99,172.58, 136,855.86 and 53,850.68

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Solution

The fourth proportional to 99,172.58, 136,855.86 and 53,850.68 is: 74,312.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,172.58 : 136,855.86 = 53,850.68 : x
  2. Step 2: Convert to fraction form
    99,172.58/136,855.86 = 53,850.68/x
  3. Step 3: Cross multiply
    99,172.58x = 136,855.86 × 53,850.68
  4. Step 4: Simplify right side
    99,172.58x = 7,369,781,122.98
  5. Step 5: Solve for x
    x = 7,369,781,122.98/99,172.58
  6. Step 6: Final answer
    x = 74,312.69

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1.5x scale

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.