Home / 135,575.51-187,105.40-75,165.10

Finding the Fourth Proportional to 135,575.51, 187,105.40 and 75,165.10

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Solution

The fourth proportional to 135,575.51, 187,105.40 and 75,165.10 is: 103,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,575.51 : 187,105.40 = 75,165.10 : x
  2. Step 2: Convert to fraction form
    135,575.51/187,105.40 = 75,165.10/x
  3. Step 3: Cross multiply
    135,575.51x = 187,105.40 × 75,165.10
  4. Step 4: Simplify right side
    135,575.51x = 14,063,795,539.82
  5. Step 5: Solve for x
    x = 14,063,795,539.82/135,575.51
  6. Step 6: Final answer
    x = 103,734.05

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1.5x scale

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.