Home / 108,136.72-149,230.92-60,390.12

Finding the Fourth Proportional to 108,136.72, 149,230.92 and 60,390.12

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Solution

The fourth proportional to 108,136.72, 149,230.92 and 60,390.12 is: 83,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,136.72 : 149,230.92 = 60,390.12 : x
  2. Step 2: Convert to fraction form
    108,136.72/149,230.92 = 60,390.12/x
  3. Step 3: Cross multiply
    108,136.72x = 149,230.92 × 60,390.12
  4. Step 4: Simplify right side
    108,136.72x = 9,012,073,166.51
  5. Step 5: Solve for x
    x = 9,012,073,166.51/108,136.72
  6. Step 6: Final answer
    x = 83,339.62

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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.