Home / 100,285.44-138,357.24-60,000.32

Finding the Fourth Proportional to 100,285.44, 138,357.24 and 60,000.32

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Solution

The fourth proportional to 100,285.44, 138,357.24 and 60,000.32 is: 82,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,285.44 : 138,357.24 = 60,000.32 : x
  2. Step 2: Convert to fraction form
    100,285.44/138,357.24 = 60,000.32/x
  3. Step 3: Cross multiply
    100,285.44x = 138,357.24 × 60,000.32
  4. Step 4: Simplify right side
    100,285.44x = 8,301,478,674.32
  5. Step 5: Solve for x
    x = 8,301,478,674.32/100,285.44
  6. Step 6: Final answer
    x = 82,778.50

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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.