Home / 135,534.07-187,038.12-75,105.73

Finding the Fourth Proportional to 135,534.07, 187,038.12 and 75,105.73

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Solution

The fourth proportional to 135,534.07, 187,038.12 and 75,105.73 is: 103,646.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,534.07 : 187,038.12 = 75,105.73 : x
  2. Step 2: Convert to fraction form
    135,534.07/187,038.12 = 75,105.73/x
  3. Step 3: Cross multiply
    135,534.07x = 187,038.12 × 75,105.73
  4. Step 4: Simplify right side
    135,534.07x = 14,047,634,540.43
  5. Step 5: Solve for x
    x = 14,047,634,540.43/135,534.07
  6. Step 6: Final answer
    x = 103,646.52

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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.