Home / 123,805.86-170,862.66-70,100.34

Finding the Fourth Proportional to 123,805.86, 170,862.66 and 70,100.34

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Solution

The fourth proportional to 123,805.86, 170,862.66 and 70,100.34 is: 96,744.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,805.86 : 170,862.66 = 70,100.34 : x
  2. Step 2: Convert to fraction form
    123,805.86/170,862.66 = 70,100.34/x
  3. Step 3: Cross multiply
    123,805.86x = 170,862.66 × 70,100.34
  4. Step 4: Simplify right side
    123,805.86x = 11,977,530,559.30
  5. Step 5: Solve for x
    x = 11,977,530,559.30/123,805.86
  6. Step 6: Final answer
    x = 96,744.46

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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.