Home / 175,073.80-262,308.30-81,387.40

Finding the Fourth Proportional to 175,073.80, 262,308.30 and 81,387.40

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Solution

The fourth proportional to 175,073.80, 262,308.30 and 81,387.40 is: 121,940.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,073.80 : 262,308.30 = 81,387.40 : x
  2. Step 2: Convert to fraction form
    175,073.80/262,308.30 = 81,387.40/x
  3. Step 3: Cross multiply
    175,073.80x = 262,308.30 × 81,387.40
  4. Step 4: Simplify right side
    175,073.80x = 21,348,590,535.42
  5. Step 5: Solve for x
    x = 21,348,590,535.42/175,073.80
  6. Step 6: Final answer
    x = 121,940.52

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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.