Home / 158,186.07-218,296.17-85,588.74

Finding the Fourth Proportional to 158,186.07, 218,296.17 and 85,588.74

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Solution

The fourth proportional to 158,186.07, 218,296.17 and 85,588.74 is: 118,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,186.07 : 218,296.17 = 85,588.74 : x
  2. Step 2: Convert to fraction form
    158,186.07/218,296.17 = 85,588.74/x
  3. Step 3: Cross multiply
    158,186.07x = 218,296.17 × 85,588.74
  4. Step 4: Simplify right side
    158,186.07x = 18,683,694,137.13
  5. Step 5: Solve for x
    x = 18,683,694,137.13/158,186.07
  6. Step 6: Final answer
    x = 118,112.13

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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.