Home / 112,149.70-154,764.60-61,162.81

Finding the Fourth Proportional to 112,149.70, 154,764.60 and 61,162.81

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Solution

The fourth proportional to 112,149.70, 154,764.60 and 61,162.81 is: 84,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,149.70 : 154,764.60 = 61,162.81 : x
  2. Step 2: Convert to fraction form
    112,149.70/154,764.60 = 61,162.81/x
  3. Step 3: Cross multiply
    112,149.70x = 154,764.60 × 61,162.81
  4. Step 4: Simplify right side
    112,149.70x = 9,465,837,824.53
  5. Step 5: Solve for x
    x = 9,465,837,824.53/112,149.70
  6. Step 6: Final answer
    x = 84,403.59

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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.