Home / 123,834.51-170,890.02-70,119.36

Finding the Fourth Proportional to 123,834.51, 170,890.02 and 70,119.36

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Solution

The fourth proportional to 123,834.51, 170,890.02 and 70,119.36 is: 96,763.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,834.51 : 170,890.02 = 70,119.36 : x
  2. Step 2: Convert to fraction form
    123,834.51/170,890.02 = 70,119.36/x
  3. Step 3: Cross multiply
    123,834.51x = 170,890.02 × 70,119.36
  4. Step 4: Simplify right side
    123,834.51x = 11,982,698,832.79
  5. Step 5: Solve for x
    x = 11,982,698,832.79/123,834.51
  6. Step 6: Final answer
    x = 96,763.81

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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.