Home / 201,023.72-277,356.12-129,445.16

Finding the Fourth Proportional to 201,023.72, 277,356.12 and 129,445.16

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Solution

The fourth proportional to 201,023.72, 277,356.12 and 129,445.16 is: 178,597.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,023.72 : 277,356.12 = 129,445.16 : x
  2. Step 2: Convert to fraction form
    201,023.72/277,356.12 = 129,445.16/x
  3. Step 3: Cross multiply
    201,023.72x = 277,356.12 × 129,445.16
  4. Step 4: Simplify right side
    201,023.72x = 35,902,407,330.38
  5. Step 5: Solve for x
    x = 35,902,407,330.38/201,023.72
  6. Step 6: Final answer
    x = 178,597.87

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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.