Home / 100,300.24-138,318.51-60,007.60

Finding the Fourth Proportional to 100,300.24, 138,318.51 and 60,007.60

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Solution

The fourth proportional to 100,300.24, 138,318.51 and 60,007.60 is: 82,753.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,300.24 : 138,318.51 = 60,007.60 : x
  2. Step 2: Convert to fraction form
    100,300.24/138,318.51 = 60,007.60/x
  3. Step 3: Cross multiply
    100,300.24x = 138,318.51 × 60,007.60
  4. Step 4: Simplify right side
    100,300.24x = 8,300,161,820.68
  5. Step 5: Solve for x
    x = 8,300,161,820.68/100,300.24
  6. Step 6: Final answer
    x = 82,753.16

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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.