Home / 135,615.05-187,148.45-75,184.14

Finding the Fourth Proportional to 135,615.05, 187,148.45 and 75,184.14

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Solution

The fourth proportional to 135,615.05, 187,148.45 and 75,184.14 is: 103,753.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,615.05 : 187,148.45 = 75,184.14 : x
  2. Step 2: Convert to fraction form
    135,615.05/187,148.45 = 75,184.14/x
  3. Step 3: Cross multiply
    135,615.05x = 187,148.45 × 75,184.14
  4. Step 4: Simplify right side
    135,615.05x = 14,070,594,889.66
  5. Step 5: Solve for x
    x = 14,070,594,889.66/135,615.05
  6. Step 6: Final answer
    x = 103,753.94

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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.