Home / 126,588.74-174,533.69-81,186.62

Finding the Fourth Proportional to 126,588.74, 174,533.69 and 81,186.62

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Solution

The fourth proportional to 126,588.74, 174,533.69 and 81,186.62 is: 111,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,588.74 : 174,533.69 = 81,186.62 : x
  2. Step 2: Convert to fraction form
    126,588.74/174,533.69 = 81,186.62/x
  3. Step 3: Cross multiply
    126,588.74x = 174,533.69 × 81,186.62
  4. Step 4: Simplify right side
    126,588.74x = 14,169,799,961.29
  5. Step 5: Solve for x
    x = 14,169,799,961.29/126,588.74
  6. Step 6: Final answer
    x = 111,935.71

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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.