Home / 92,538.33-138,862.79-85,009.58

Finding the Fourth Proportional to 92,538.33, 138,862.79 and 85,009.58

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Solution

The fourth proportional to 92,538.33, 138,862.79 and 85,009.58 is: 127,565.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,538.33 : 138,862.79 = 85,009.58 : x
  2. Step 2: Convert to fraction form
    92,538.33/138,862.79 = 85,009.58/x
  3. Step 3: Cross multiply
    92,538.33x = 138,862.79 × 85,009.58
  4. Step 4: Simplify right side
    92,538.33x = 11,804,667,421.87
  5. Step 5: Solve for x
    x = 11,804,667,421.87/92,538.33
  6. Step 6: Final answer
    x = 127,565.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.