Home / 147,623.68-203,721.24-80,555.68

Finding the Fourth Proportional to 147,623.68, 203,721.24 and 80,555.68

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Solution

The fourth proportional to 147,623.68, 203,721.24 and 80,555.68 is: 111,167.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,623.68 : 203,721.24 = 80,555.68 : x
  2. Step 2: Convert to fraction form
    147,623.68/203,721.24 = 80,555.68/x
  3. Step 3: Cross multiply
    147,623.68x = 203,721.24 × 80,555.68
  4. Step 4: Simplify right side
    147,623.68x = 16,410,903,018.64
  5. Step 5: Solve for x
    x = 16,410,903,018.64/147,623.68
  6. Step 6: Final answer
    x = 111,167.14

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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.