Home / 117,268.79-161,830.52-63,555.13

Finding the Fourth Proportional to 117,268.79, 161,830.52 and 63,555.13

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Solution

The fourth proportional to 117,268.79, 161,830.52 and 63,555.13 is: 87,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,268.79 : 161,830.52 = 63,555.13 : x
  2. Step 2: Convert to fraction form
    117,268.79/161,830.52 = 63,555.13/x
  3. Step 3: Cross multiply
    117,268.79x = 161,830.52 × 63,555.13
  4. Step 4: Simplify right side
    117,268.79x = 10,285,158,927.42
  5. Step 5: Solve for x
    x = 10,285,158,927.42/117,268.79
  6. Step 6: Final answer
    x = 87,705.85

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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.