Home / 135,722.79-187,295.29-75,292.34

Finding the Fourth Proportional to 135,722.79, 187,295.29 and 75,292.34

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Solution

The fourth proportional to 135,722.79, 187,295.29 and 75,292.34 is: 103,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,722.79 : 187,295.29 = 75,292.34 : x
  2. Step 2: Convert to fraction form
    135,722.79/187,295.29 = 75,292.34/x
  3. Step 3: Cross multiply
    135,722.79x = 187,295.29 × 75,292.34
  4. Step 4: Simplify right side
    135,722.79x = 14,101,899,530.37
  5. Step 5: Solve for x
    x = 14,101,899,530.37/135,722.79
  6. Step 6: Final answer
    x = 103,902.22

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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.