Home / 151,720.97-209,256.56-97,278.33

Finding the Fourth Proportional to 151,720.97, 209,256.56 and 97,278.33

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Solution

The fourth proportional to 151,720.97, 209,256.56 and 97,278.33 is: 134,168.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,720.97 : 209,256.56 = 97,278.33 : x
  2. Step 2: Convert to fraction form
    151,720.97/209,256.56 = 97,278.33/x
  3. Step 3: Cross multiply
    151,720.97x = 209,256.56 × 97,278.33
  4. Step 4: Simplify right side
    151,720.97x = 20,356,129,908.65
  5. Step 5: Solve for x
    x = 20,356,129,908.65/151,720.97
  6. Step 6: Final answer
    x = 134,168.21

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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.