Home / 151,663.12-209,362.20-97,974.28

Finding the Fourth Proportional to 151,663.12, 209,362.20 and 97,974.28

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Solution

The fourth proportional to 151,663.12, 209,362.20 and 97,974.28 is: 135,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,663.12 : 209,362.20 = 97,974.28 : x
  2. Step 2: Convert to fraction form
    151,663.12/209,362.20 = 97,974.28/x
  3. Step 3: Cross multiply
    151,663.12x = 209,362.20 × 97,974.28
  4. Step 4: Simplify right side
    151,663.12x = 20,512,110,804.22
  5. Step 5: Solve for x
    x = 20,512,110,804.22/151,663.12
  6. Step 6: Final answer
    x = 135,247.85

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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.