Home / 111,456.05-153,806.70-61,726.97

Finding the Fourth Proportional to 111,456.05, 153,806.70 and 61,726.97

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Solution

The fourth proportional to 111,456.05, 153,806.70 and 61,726.97 is: 85,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,456.05 : 153,806.70 = 61,726.97 : x
  2. Step 2: Convert to fraction form
    111,456.05/153,806.70 = 61,726.97/x
  3. Step 3: Cross multiply
    111,456.05x = 153,806.70 × 61,726.97
  4. Step 4: Simplify right side
    111,456.05x = 9,494,022,041.77
  5. Step 5: Solve for x
    x = 9,494,022,041.77/111,456.05
  6. Step 6: Final answer
    x = 85,181.76

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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.