Home / 147,750.16-203,899.40-80,686.48

Finding the Fourth Proportional to 147,750.16, 203,899.40 and 80,686.48

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Solution

The fourth proportional to 147,750.16, 203,899.40 and 80,686.48 is: 111,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,750.16 : 203,899.40 = 80,686.48 : x
  2. Step 2: Convert to fraction form
    147,750.16/203,899.40 = 80,686.48/x
  3. Step 3: Cross multiply
    147,750.16x = 203,899.40 × 80,686.48
  4. Step 4: Simplify right side
    147,750.16x = 16,451,924,860.11
  5. Step 5: Solve for x
    x = 16,451,924,860.11/147,750.16
  6. Step 6: Final answer
    x = 111,349.62

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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.