Home / 112,221.39-154,868.73-61,923.63

Finding the Fourth Proportional to 112,221.39, 154,868.73 and 61,923.63

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Solution

The fourth proportional to 112,221.39, 154,868.73 and 61,923.63 is: 85,456.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,221.39 : 154,868.73 = 61,923.63 : x
  2. Step 2: Convert to fraction form
    112,221.39/154,868.73 = 61,923.63/x
  3. Step 3: Cross multiply
    112,221.39x = 154,868.73 × 61,923.63
  4. Step 4: Simplify right side
    112,221.39x = 9,590,033,935.09
  5. Step 5: Solve for x
    x = 9,590,033,935.09/112,221.39
  6. Step 6: Final answer
    x = 85,456.38

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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.