Home / 135,498.29-186,987.51-75,072.70

Finding the Fourth Proportional to 135,498.29, 186,987.51 and 75,072.70

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Solution

The fourth proportional to 135,498.29, 186,987.51 and 75,072.70 is: 103,600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,498.29 : 186,987.51 = 75,072.70 : x
  2. Step 2: Convert to fraction form
    135,498.29/186,987.51 = 75,072.70/x
  3. Step 3: Cross multiply
    135,498.29x = 186,987.51 × 75,072.70
  4. Step 4: Simplify right side
    135,498.29x = 14,037,657,241.98
  5. Step 5: Solve for x
    x = 14,037,657,241.98/135,498.29
  6. Step 6: Final answer
    x = 103,600.25

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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.