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Finding the Fourth Proportional to 103,180.80, 154,625.40 and 63,620.40

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Solution

The fourth proportional to 103,180.80, 154,625.40 and 63,620.40 is: 95,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,180.80 : 154,625.40 = 63,620.40 : x
  2. Step 2: Convert to fraction form
    103,180.80/154,625.40 = 63,620.40/x
  3. Step 3: Cross multiply
    103,180.80x = 154,625.40 × 63,620.40
  4. Step 4: Simplify right side
    103,180.80x = 9,837,329,798.16
  5. Step 5: Solve for x
    x = 9,837,329,798.16/103,180.80
  6. Step 6: Final answer
    x = 95,340.70

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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.