Home / 135,554.29-187,064.91-75,134.01

Finding the Fourth Proportional to 135,554.29, 187,064.91 and 75,134.01

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Solution

The fourth proportional to 135,554.29, 187,064.91 and 75,134.01 is: 103,684.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,554.29 : 187,064.91 = 75,134.01 : x
  2. Step 2: Convert to fraction form
    135,554.29/187,064.91 = 75,134.01/x
  3. Step 3: Cross multiply
    135,554.29x = 187,064.91 × 75,134.01
  4. Step 4: Simplify right side
    135,554.29x = 14,054,936,818.59
  5. Step 5: Solve for x
    x = 14,054,936,818.59/135,554.29
  6. Step 6: Final answer
    x = 103,684.93

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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.