Home / 112,895.64-155,795.94-61,212.78

Finding the Fourth Proportional to 112,895.64, 155,795.94 and 61,212.78

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Solution

The fourth proportional to 112,895.64, 155,795.94 and 61,212.78 is: 84,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,895.64 : 155,795.94 = 61,212.78 : x
  2. Step 2: Convert to fraction form
    112,895.64/155,795.94 = 61,212.78/x
  3. Step 3: Cross multiply
    112,895.64x = 155,795.94 × 61,212.78
  4. Step 4: Simplify right side
    112,895.64x = 9,536,702,600.11
  5. Step 5: Solve for x
    x = 9,536,702,600.11/112,895.64
  6. Step 6: Final answer
    x = 84,473.61

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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.