Home / 117,165.60-161,686.52-63,450.18

Finding the Fourth Proportional to 117,165.60, 161,686.52 and 63,450.18

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Solution

The fourth proportional to 117,165.60, 161,686.52 and 63,450.18 is: 87,560.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,165.60 : 161,686.52 = 63,450.18 : x
  2. Step 2: Convert to fraction form
    117,165.60/161,686.52 = 63,450.18/x
  3. Step 3: Cross multiply
    117,165.60x = 161,686.52 × 63,450.18
  4. Step 4: Simplify right side
    117,165.60x = 10,259,038,797.57
  5. Step 5: Solve for x
    x = 10,259,038,797.57/117,165.60
  6. Step 6: Final answer
    x = 87,560.16

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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.