Home / 117,820.20-176,730.30-54,640.20

Finding the Fourth Proportional to 117,820.20, 176,730.30 and 54,640.20

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Solution

The fourth proportional to 117,820.20, 176,730.30 and 54,640.20 is: 81,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,820.20 : 176,730.30 = 54,640.20 : x
  2. Step 2: Convert to fraction form
    117,820.20/176,730.30 = 54,640.20/x
  3. Step 3: Cross multiply
    117,820.20x = 176,730.30 × 54,640.20
  4. Step 4: Simplify right side
    117,820.20x = 9,656,578,938.06
  5. Step 5: Solve for x
    x = 9,656,578,938.06/117,820.20
  6. Step 6: Final answer
    x = 81,960.30

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1.5x scale

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.