Home / 123,828.13-170,884.65-70,111.63

Finding the Fourth Proportional to 123,828.13, 170,884.65 and 70,111.63

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Solution

The fourth proportional to 123,828.13, 170,884.65 and 70,111.63 is: 96,755.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,828.13 : 170,884.65 = 70,111.63 : x
  2. Step 2: Convert to fraction form
    123,828.13/170,884.65 = 70,111.63/x
  3. Step 3: Cross multiply
    123,828.13x = 170,884.65 × 70,111.63
  4. Step 4: Simplify right side
    123,828.13x = 11,981,001,353.48
  5. Step 5: Solve for x
    x = 11,981,001,353.48/123,828.13
  6. Step 6: Final answer
    x = 96,755.09

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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.