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Finding the Fourth Proportional to 145,322.76, 200,546.48 and 79,912.73

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Solution

The fourth proportional to 145,322.76, 200,546.48 and 79,912.73 is: 110,280.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,322.76 : 200,546.48 = 79,912.73 : x
  2. Step 2: Convert to fraction form
    145,322.76/200,546.48 = 79,912.73/x
  3. Step 3: Cross multiply
    145,322.76x = 200,546.48 × 79,912.73
  4. Step 4: Simplify right side
    145,322.76x = 16,026,216,810.49
  5. Step 5: Solve for x
    x = 16,026,216,810.49/145,322.76
  6. Step 6: Final answer
    x = 110,280.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.