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Finding the Fourth Proportional to 73,208.20, 109,812.30 and 60,742.30

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Solution

The fourth proportional to 73,208.20, 109,812.30 and 60,742.30 is: 91,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,208.20 : 109,812.30 = 60,742.30 : x
  2. Step 2: Convert to fraction form
    73,208.20/109,812.30 = 60,742.30/x
  3. Step 3: Cross multiply
    73,208.20x = 109,812.30 × 60,742.30
  4. Step 4: Simplify right side
    73,208.20x = 6,670,251,670.29
  5. Step 5: Solve for x
    x = 6,670,251,670.29/73,208.20
  6. Step 6: Final answer
    x = 91,113.45

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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.