Home / 495,966.88-743,943.92-121,993.12

Finding the Fourth Proportional to 495,966.88, 743,943.92 and 121,993.12

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Solution

The fourth proportional to 495,966.88, 743,943.92 and 121,993.12 is: 182,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,966.88 : 743,943.92 = 121,993.12 : x
  2. Step 2: Convert to fraction form
    495,966.88/743,943.92 = 121,993.12/x
  3. Step 3: Cross multiply
    495,966.88x = 743,943.92 × 121,993.12
  4. Step 4: Simplify right side
    495,966.88x = 90,756,039,905.83
  5. Step 5: Solve for x
    x = 90,756,039,905.83/495,966.88
  6. Step 6: Final answer
    x = 182,988.11

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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.