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Finding the Fourth Proportional to 108,903.23, 150,346.02 and 65,890.07

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Solution

The fourth proportional to 108,903.23, 150,346.02 and 65,890.07 is: 90,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,903.23 : 150,346.02 = 65,890.07 : x
  2. Step 2: Convert to fraction form
    108,903.23/150,346.02 = 65,890.07/x
  3. Step 3: Cross multiply
    108,903.23x = 150,346.02 × 65,890.07
  4. Step 4: Simplify right side
    108,903.23x = 9,906,309,030.29
  5. Step 5: Solve for x
    x = 9,906,309,030.29/108,903.23
  6. Step 6: Final answer
    x = 90,964.33

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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.