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Finding the Fourth Proportional to 126,887.63, 175,110.66 and 70,299

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Solution

The fourth proportional to 126,887.63, 175,110.66 and 70,299 is: 97,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,887.63 : 175,110.66 = 70,299 : x
  2. Step 2: Convert to fraction form
    126,887.63/175,110.66 = 70,299/x
  3. Step 3: Cross multiply
    126,887.63x = 175,110.66 × 70,299
  4. Step 4: Simplify right side
    126,887.63x = 12,310,104,287.34
  5. Step 5: Solve for x
    x = 12,310,104,287.34/126,887.63
  6. Step 6: Final answer
    x = 97,015.80

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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.