Home / 147,705.12-203,832.02-80,637.12

Finding the Fourth Proportional to 147,705.12, 203,832.02 and 80,637.12

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Solution

The fourth proportional to 147,705.12, 203,832.02 and 80,637.12 is: 111,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,705.12 : 203,832.02 = 80,637.12 : x
  2. Step 2: Convert to fraction form
    147,705.12/203,832.02 = 80,637.12/x
  3. Step 3: Cross multiply
    147,705.12x = 203,832.02 × 80,637.12
  4. Step 4: Simplify right side
    147,705.12x = 16,436,427,056.58
  5. Step 5: Solve for x
    x = 16,436,427,056.58/147,705.12
  6. Step 6: Final answer
    x = 111,278.65

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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.