Home / 147,102.72-203,001.12-80,036.16

Finding the Fourth Proportional to 147,102.72, 203,001.12 and 80,036.16

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Solution

The fourth proportional to 147,102.72, 203,001.12 and 80,036.16 is: 110,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,102.72 : 203,001.12 = 80,036.16 : x
  2. Step 2: Convert to fraction form
    147,102.72/203,001.12 = 80,036.16/x
  3. Step 3: Cross multiply
    147,102.72x = 203,001.12 × 80,036.16
  4. Step 4: Simplify right side
    147,102.72x = 16,247,430,120.50
  5. Step 5: Solve for x
    x = 16,247,430,120.50/147,102.72
  6. Step 6: Final answer
    x = 110,449.56

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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.