Home / 123,350.40-170,224.16-69,637.60

Finding the Fourth Proportional to 123,350.40, 170,224.16 and 69,637.60

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Solution

The fourth proportional to 123,350.40, 170,224.16 and 69,637.60 is: 96,100.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,350.40 : 170,224.16 = 69,637.60 : x
  2. Step 2: Convert to fraction form
    123,350.40/170,224.16 = 69,637.60/x
  3. Step 3: Cross multiply
    123,350.40x = 170,224.16 × 69,637.60
  4. Step 4: Simplify right side
    123,350.40x = 11,854,001,964.42
  5. Step 5: Solve for x
    x = 11,854,001,964.42/123,350.40
  6. Step 6: Final answer
    x = 96,100.23

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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.