Home / 174,845.80-261,966.30-81,159.40

Finding the Fourth Proportional to 174,845.80, 261,966.30 and 81,159.40

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Solution

The fourth proportional to 174,845.80, 261,966.30 and 81,159.40 is: 121,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,845.80 : 261,966.30 = 81,159.40 : x
  2. Step 2: Convert to fraction form
    174,845.80/261,966.30 = 81,159.40/x
  3. Step 3: Cross multiply
    174,845.80x = 261,966.30 × 81,159.40
  4. Step 4: Simplify right side
    174,845.80x = 21,261,027,728.22
  5. Step 5: Solve for x
    x = 21,261,027,728.22/174,845.80
  6. Step 6: Final answer
    x = 121,598.73

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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.