Home / 112,153.86-154,761.57-61,849.62

Finding the Fourth Proportional to 112,153.86, 154,761.57 and 61,849.62

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Solution

The fourth proportional to 112,153.86, 154,761.57 and 61,849.62 is: 85,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,153.86 : 154,761.57 = 61,849.62 : x
  2. Step 2: Convert to fraction form
    112,153.86/154,761.57 = 61,849.62/x
  3. Step 3: Cross multiply
    112,153.86x = 154,761.57 × 61,849.62
  4. Step 4: Simplify right side
    112,153.86x = 9,571,944,295.10
  5. Step 5: Solve for x
    x = 9,571,944,295.10/112,153.86
  6. Step 6: Final answer
    x = 85,346.54

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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.