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Finding the Fourth Proportional to 108,135, 149,224.68 and 60,389.04

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Solution

The fourth proportional to 108,135, 149,224.68 and 60,389.04 is: 83,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,135 : 149,224.68 = 60,389.04 : x
  2. Step 2: Convert to fraction form
    108,135/149,224.68 = 60,389.04/x
  3. Step 3: Cross multiply
    108,135x = 149,224.68 × 60,389.04
  4. Step 4: Simplify right side
    108,135x = 9,011,535,169.51
  5. Step 5: Solve for x
    x = 9,011,535,169.51/108,135
  6. Step 6: Final answer
    x = 83,335.97

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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.