Home / 147,355.45-203,350.53-80,287.45

Finding the Fourth Proportional to 147,355.45, 203,350.53 and 80,287.45

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Solution

The fourth proportional to 147,355.45, 203,350.53 and 80,287.45 is: 110,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,355.45 : 203,350.53 = 80,287.45 : x
  2. Step 2: Convert to fraction form
    147,355.45/203,350.53 = 80,287.45/x
  3. Step 3: Cross multiply
    147,355.45x = 203,350.53 × 80,287.45
  4. Step 4: Simplify right side
    147,355.45x = 16,326,495,768.97
  5. Step 5: Solve for x
    x = 16,326,495,768.97/147,355.45
  6. Step 6: Final answer
    x = 110,796.69

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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.