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Finding the Fourth Proportional to 102,703.92, 154,182.74 and 48,720.22

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Solution

The fourth proportional to 102,703.92, 154,182.74 and 48,720.22 is: 73,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,703.92 : 154,182.74 = 48,720.22 : x
  2. Step 2: Convert to fraction form
    102,703.92/154,182.74 = 48,720.22/x
  3. Step 3: Cross multiply
    102,703.92x = 154,182.74 × 48,720.22
  4. Step 4: Simplify right side
    102,703.92x = 7,511,815,998.49
  5. Step 5: Solve for x
    x = 7,511,815,998.49/102,703.92
  6. Step 6: Final answer
    x = 73,140.50

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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.