Home / 123,197.42-170,015.56-75,477.08

Finding the Fourth Proportional to 123,197.42, 170,015.56 and 75,477.08

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Solution

The fourth proportional to 123,197.42, 170,015.56 and 75,477.08 is: 104,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,197.42 : 170,015.56 = 75,477.08 : x
  2. Step 2: Convert to fraction form
    123,197.42/170,015.56 = 75,477.08/x
  3. Step 3: Cross multiply
    123,197.42x = 170,015.56 × 75,477.08
  4. Step 4: Simplify right side
    123,197.42x = 12,832,278,023.36
  5. Step 5: Solve for x
    x = 12,832,278,023.36/123,197.42
  6. Step 6: Final answer
    x = 104,160.28

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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.