Home / 117,287.60-161,856.29-63,572.18

Finding the Fourth Proportional to 117,287.60, 161,856.29 and 63,572.18

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Solution

The fourth proportional to 117,287.60, 161,856.29 and 63,572.18 is: 87,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,287.60 : 161,856.29 = 63,572.18 : x
  2. Step 2: Convert to fraction form
    117,287.60/161,856.29 = 63,572.18/x
  3. Step 3: Cross multiply
    117,287.60x = 161,856.29 × 63,572.18
  4. Step 4: Simplify right side
    117,287.60x = 10,289,556,551.66
  5. Step 5: Solve for x
    x = 10,289,556,551.66/117,287.60
  6. Step 6: Final answer
    x = 87,729.28

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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.