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Finding the Fourth Proportional to 103,433.80, 155,004.90 and 63,873.40

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Solution

The fourth proportional to 103,433.80, 155,004.90 and 63,873.40 is: 95,720.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,433.80 : 155,004.90 = 63,873.40 : x
  2. Step 2: Convert to fraction form
    103,433.80/155,004.90 = 63,873.40/x
  3. Step 3: Cross multiply
    103,433.80x = 155,004.90 × 63,873.40
  4. Step 4: Simplify right side
    103,433.80x = 9,900,689,979.66
  5. Step 5: Solve for x
    x = 9,900,689,979.66/103,433.80
  6. Step 6: Final answer
    x = 95,720.06

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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.