Home / 117,258.40-161,806.96-66,275.48

Finding the Fourth Proportional to 117,258.40, 161,806.96 and 66,275.48

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Solution

The fourth proportional to 117,258.40, 161,806.96 and 66,275.48 is: 91,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,258.40 : 161,806.96 = 66,275.48 : x
  2. Step 2: Convert to fraction form
    117,258.40/161,806.96 = 66,275.48/x
  3. Step 3: Cross multiply
    117,258.40x = 161,806.96 × 66,275.48
  4. Step 4: Simplify right side
    117,258.40x = 10,723,833,941.34
  5. Step 5: Solve for x
    x = 10,723,833,941.34/117,258.40
  6. Step 6: Final answer
    x = 91,454.72

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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.