Home / 117,968.20-176,952.30-80,643.40

Finding the Fourth Proportional to 117,968.20, 176,952.30 and 80,643.40

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Solution

The fourth proportional to 117,968.20, 176,952.30 and 80,643.40 is: 120,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,968.20 : 176,952.30 = 80,643.40 : x
  2. Step 2: Convert to fraction form
    117,968.20/176,952.30 = 80,643.40/x
  3. Step 3: Cross multiply
    117,968.20x = 176,952.30 × 80,643.40
  4. Step 4: Simplify right side
    117,968.20x = 14,270,035,109.82
  5. Step 5: Solve for x
    x = 14,270,035,109.82/117,968.20
  6. Step 6: Final answer
    x = 120,965.10

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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.