Home / 135,720.34-187,294.54-75,292.18

Finding the Fourth Proportional to 135,720.34, 187,294.54 and 75,292.18

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Solution

The fourth proportional to 135,720.34, 187,294.54 and 75,292.18 is: 103,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,720.34 : 187,294.54 = 75,292.18 : x
  2. Step 2: Convert to fraction form
    135,720.34/187,294.54 = 75,292.18/x
  3. Step 3: Cross multiply
    135,720.34x = 187,294.54 × 75,292.18
  4. Step 4: Simplify right side
    135,720.34x = 14,101,814,218.70
  5. Step 5: Solve for x
    x = 14,101,814,218.70/135,720.34
  6. Step 6: Final answer
    x = 103,903.47

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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.