Home / 135,939.26-187,686.89-85,024.07

Finding the Fourth Proportional to 135,939.26, 187,686.89 and 85,024.07

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Solution

The fourth proportional to 135,939.26, 187,686.89 and 85,024.07 is: 117,389.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,939.26 : 187,686.89 = 85,024.07 : x
  2. Step 2: Convert to fraction form
    135,939.26/187,686.89 = 85,024.07/x
  3. Step 3: Cross multiply
    135,939.26x = 187,686.89 × 85,024.07
  4. Step 4: Simplify right side
    135,939.26x = 15,957,903,955.22
  5. Step 5: Solve for x
    x = 15,957,903,955.22/135,939.26
  6. Step 6: Final answer
    x = 117,389.96

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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.