Home / 108,720.47-150,019.75-60,321.62

Finding the Fourth Proportional to 108,720.47, 150,019.75 and 60,321.62

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Solution

The fourth proportional to 108,720.47, 150,019.75 and 60,321.62 is: 83,235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,720.47 : 150,019.75 = 60,321.62 : x
  2. Step 2: Convert to fraction form
    108,720.47/150,019.75 = 60,321.62/x
  3. Step 3: Cross multiply
    108,720.47x = 150,019.75 × 60,321.62
  4. Step 4: Simplify right side
    108,720.47x = 9,049,434,352.00
  5. Step 5: Solve for x
    x = 9,049,434,352.00/108,720.47
  6. Step 6: Final answer
    x = 83,235.79

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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.