Home / 136,784.80-204,710.40-114,623.20

Finding the Fourth Proportional to 136,784.80, 204,710.40 and 114,623.20

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Solution

The fourth proportional to 136,784.80, 204,710.40 and 114,623.20 is: 171,543.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,784.80 : 204,710.40 = 114,623.20 : x
  2. Step 2: Convert to fraction form
    136,784.80/204,710.40 = 114,623.20/x
  3. Step 3: Cross multiply
    136,784.80x = 204,710.40 × 114,623.20
  4. Step 4: Simplify right side
    136,784.80x = 23,464,561,121.28
  5. Step 5: Solve for x
    x = 23,464,561,121.28/136,784.80
  6. Step 6: Final answer
    x = 171,543.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.