Home / 135,853.13-187,467.95-75,419.10

Finding the Fourth Proportional to 135,853.13, 187,467.95 and 75,419.10

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Solution

The fourth proportional to 135,853.13, 187,467.95 and 75,419.10 is: 104,073.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,853.13 : 187,467.95 = 75,419.10 : x
  2. Step 2: Convert to fraction form
    135,853.13/187,467.95 = 75,419.10/x
  3. Step 3: Cross multiply
    135,853.13x = 187,467.95 × 75,419.10
  4. Step 4: Simplify right side
    135,853.13x = 14,138,664,256.39
  5. Step 5: Solve for x
    x = 14,138,664,256.39/135,853.13
  6. Step 6: Final answer
    x = 104,073.16

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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.