Home / 108,137.22-149,231.61-60,390.63

Finding the Fourth Proportional to 108,137.22, 149,231.61 and 60,390.63

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Solution

The fourth proportional to 108,137.22, 149,231.61 and 60,390.63 is: 83,340.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,137.22 : 149,231.61 = 60,390.63 : x
  2. Step 2: Convert to fraction form
    108,137.22/149,231.61 = 60,390.63/x
  3. Step 3: Cross multiply
    108,137.22x = 149,231.61 × 60,390.63
  4. Step 4: Simplify right side
    108,137.22x = 9,012,190,943.81
  5. Step 5: Solve for x
    x = 9,012,190,943.81/108,137.22
  6. Step 6: Final answer
    x = 83,340.32

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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.