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Finding the Fourth Proportional to 108,230.81, 149,261.81 and 67,948.32

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Solution

The fourth proportional to 108,230.81, 149,261.81 and 67,948.32 is: 93,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,230.81 : 149,261.81 = 67,948.32 : x
  2. Step 2: Convert to fraction form
    108,230.81/149,261.81 = 67,948.32/x
  3. Step 3: Cross multiply
    108,230.81x = 149,261.81 × 67,948.32
  4. Step 4: Simplify right side
    108,230.81x = 10,142,088,889.92
  5. Step 5: Solve for x
    x = 10,142,088,889.92/108,230.81
  6. Step 6: Final answer
    x = 93,707.97

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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.