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Finding the Fourth Proportional to 73,302.30, 109,953.45 and 66,741.30

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Solution

The fourth proportional to 73,302.30, 109,953.45 and 66,741.30 is: 100,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,302.30 : 109,953.45 = 66,741.30 : x
  2. Step 2: Convert to fraction form
    73,302.30/109,953.45 = 66,741.30/x
  3. Step 3: Cross multiply
    73,302.30x = 109,953.45 × 66,741.30
  4. Step 4: Simplify right side
    73,302.30x = 7,338,436,192.49
  5. Step 5: Solve for x
    x = 7,338,436,192.49/73,302.30
  6. Step 6: Final answer
    x = 100,111.95

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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.