Home / 108,136.39-149,206.58-60,382.39

Finding the Fourth Proportional to 108,136.39, 149,206.58 and 60,382.39

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Solution

The fourth proportional to 108,136.39, 149,206.58 and 60,382.39 is: 83,315.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,136.39 : 149,206.58 = 60,382.39 : x
  2. Step 2: Convert to fraction form
    108,136.39/149,206.58 = 60,382.39/x
  3. Step 3: Cross multiply
    108,136.39x = 149,206.58 × 60,382.39
  4. Step 4: Simplify right side
    108,136.39x = 9,009,449,602.21
  5. Step 5: Solve for x
    x = 9,009,449,602.21/108,136.39
  6. Step 6: Final answer
    x = 83,315.61

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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.