Home / 164,945.68-247,198.20-85,894.16

Finding the Fourth Proportional to 164,945.68, 247,198.20 and 85,894.16

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Solution

The fourth proportional to 164,945.68, 247,198.20 and 85,894.16 is: 128,726.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,945.68 : 247,198.20 = 85,894.16 : x
  2. Step 2: Convert to fraction form
    164,945.68/247,198.20 = 85,894.16/x
  3. Step 3: Cross multiply
    164,945.68x = 247,198.20 × 85,894.16
  4. Step 4: Simplify right side
    164,945.68x = 21,232,881,742.51
  5. Step 5: Solve for x
    x = 21,232,881,742.51/164,945.68
  6. Step 6: Final answer
    x = 128,726.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.