Home / 135,971.07-187,640.30-75,541.79

Finding the Fourth Proportional to 135,971.07, 187,640.30 and 75,541.79

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Solution

The fourth proportional to 135,971.07, 187,640.30 and 75,541.79 is: 104,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,971.07 : 187,640.30 = 75,541.79 : x
  2. Step 2: Convert to fraction form
    135,971.07/187,640.30 = 75,541.79/x
  3. Step 3: Cross multiply
    135,971.07x = 187,640.30 × 75,541.79
  4. Step 4: Simplify right side
    135,971.07x = 14,174,683,199.94
  5. Step 5: Solve for x
    x = 14,174,683,199.94/135,971.07
  6. Step 6: Final answer
    x = 104,247.79

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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.