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Finding the Fourth Proportional to 147,015, 202,882.32 and 79,947

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Solution

The fourth proportional to 147,015, 202,882.32 and 79,947 is: 110,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,015 : 202,882.32 = 79,947 : x
  2. Step 2: Convert to fraction form
    147,015/202,882.32 = 79,947/x
  3. Step 3: Cross multiply
    147,015x = 202,882.32 × 79,947
  4. Step 4: Simplify right side
    147,015x = 16,219,832,837.04
  5. Step 5: Solve for x
    x = 16,219,832,837.04/147,015
  6. Step 6: Final answer
    x = 110,327.74

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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.