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Finding the Fourth Proportional to 103,080.30, 154,357.94 and 67,913.34

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Solution

The fourth proportional to 103,080.30, 154,357.94 and 67,913.34 is: 101,697.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,080.30 : 154,357.94 = 67,913.34 : x
  2. Step 2: Convert to fraction form
    103,080.30/154,357.94 = 67,913.34/x
  3. Step 3: Cross multiply
    103,080.30x = 154,357.94 × 67,913.34
  4. Step 4: Simplify right side
    103,080.30x = 10,482,963,260.92
  5. Step 5: Solve for x
    x = 10,482,963,260.92/103,080.30
  6. Step 6: Final answer
    x = 101,697.06

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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.