Home / 135,568.61-187,090.99-75,140.59

Finding the Fourth Proportional to 135,568.61, 187,090.99 and 75,140.59

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Solution

The fourth proportional to 135,568.61, 187,090.99 and 75,140.59 is: 103,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,568.61 : 187,090.99 = 75,140.59 : x
  2. Step 2: Convert to fraction form
    135,568.61/187,090.99 = 75,140.59/x
  3. Step 3: Cross multiply
    135,568.61x = 187,090.99 × 75,140.59
  4. Step 4: Simplify right side
    135,568.61x = 14,058,127,372.28
  5. Step 5: Solve for x
    x = 14,058,127,372.28/135,568.61
  6. Step 6: Final answer
    x = 103,697.51

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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.