Home / 149,822.32-206,837.76-102,145.72

Finding the Fourth Proportional to 149,822.32, 206,837.76 and 102,145.72

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Solution

The fourth proportional to 149,822.32, 206,837.76 and 102,145.72 is: 141,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,822.32 : 206,837.76 = 102,145.72 : x
  2. Step 2: Convert to fraction form
    149,822.32/206,837.76 = 102,145.72/x
  3. Step 3: Cross multiply
    149,822.32x = 206,837.76 × 102,145.72
  4. Step 4: Simplify right side
    149,822.32x = 21,127,591,918.39
  5. Step 5: Solve for x
    x = 21,127,591,918.39/149,822.32
  6. Step 6: Final answer
    x = 141,017.65

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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.