Home / 123,728.04-170,742.33-70,012.08

Finding the Fourth Proportional to 123,728.04, 170,742.33 and 70,012.08

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Solution

The fourth proportional to 123,728.04, 170,742.33 and 70,012.08 is: 96,615.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,728.04 : 170,742.33 = 70,012.08 : x
  2. Step 2: Convert to fraction form
    123,728.04/170,742.33 = 70,012.08/x
  3. Step 3: Cross multiply
    123,728.04x = 170,742.33 × 70,012.08
  4. Step 4: Simplify right side
    123,728.04x = 11,954,025,667.35
  5. Step 5: Solve for x
    x = 11,954,025,667.35/123,728.04
  6. Step 6: Final answer
    x = 96,615.33

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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.