Home / 135,620.04-187,102.26-84,603

Finding the Fourth Proportional to 135,620.04, 187,102.26 and 84,603

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Solution

The fourth proportional to 135,620.04, 187,102.26 and 84,603 is: 116,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,620.04 : 187,102.26 = 84,603 : x
  2. Step 2: Convert to fraction form
    135,620.04/187,102.26 = 84,603/x
  3. Step 3: Cross multiply
    135,620.04x = 187,102.26 × 84,603
  4. Step 4: Simplify right side
    135,620.04x = 15,829,412,502.78
  5. Step 5: Solve for x
    x = 15,829,412,502.78/135,620.04
  6. Step 6: Final answer
    x = 116,718.83

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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.