Home / 135,667.31-187,220.89-75,247.21

Finding the Fourth Proportional to 135,667.31, 187,220.89 and 75,247.21

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Solution

The fourth proportional to 135,667.31, 187,220.89 and 75,247.21 is: 103,841.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,667.31 : 187,220.89 = 75,247.21 : x
  2. Step 2: Convert to fraction form
    135,667.31/187,220.89 = 75,247.21/x
  3. Step 3: Cross multiply
    135,667.31x = 187,220.89 × 75,247.21
  4. Step 4: Simplify right side
    135,667.31x = 14,087,849,252.22
  5. Step 5: Solve for x
    x = 14,087,849,252.22/135,667.31
  6. Step 6: Final answer
    x = 103,841.15

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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.