Home / 186,856.24-258,142.44-122,478.28

Finding the Fourth Proportional to 186,856.24, 258,142.44 and 122,478.28

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Solution

The fourth proportional to 186,856.24, 258,142.44 and 122,478.28 is: 169,204.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,856.24 : 258,142.44 = 122,478.28 : x
  2. Step 2: Convert to fraction form
    186,856.24/258,142.44 = 122,478.28/x
  3. Step 3: Cross multiply
    186,856.24x = 258,142.44 × 122,478.28
  4. Step 4: Simplify right side
    186,856.24x = 31,616,842,046.20
  5. Step 5: Solve for x
    x = 31,616,842,046.20/186,856.24
  6. Step 6: Final answer
    x = 169,204.10

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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.