Home / 135,537.46-187,023.99-75,105.19

Finding the Fourth Proportional to 135,537.46, 187,023.99 and 75,105.19

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Solution

The fourth proportional to 135,537.46, 187,023.99 and 75,105.19 is: 103,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,537.46 : 187,023.99 = 75,105.19 : x
  2. Step 2: Convert to fraction form
    135,537.46/187,023.99 = 75,105.19/x
  3. Step 3: Cross multiply
    135,537.46x = 187,023.99 × 75,105.19
  4. Step 4: Simplify right side
    135,537.46x = 14,046,472,303.51
  5. Step 5: Solve for x
    x = 14,046,472,303.51/135,537.46
  6. Step 6: Final answer
    x = 103,635.35

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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.