Home / 151,636.02-209,190.04-87,936.90

Finding the Fourth Proportional to 151,636.02, 209,190.04 and 87,936.90

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Solution

The fourth proportional to 151,636.02, 209,190.04 and 87,936.90 is: 121,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,636.02 : 209,190.04 = 87,936.90 : x
  2. Step 2: Convert to fraction form
    151,636.02/209,190.04 = 87,936.90/x
  3. Step 3: Cross multiply
    151,636.02x = 209,190.04 × 87,936.90
  4. Step 4: Simplify right side
    151,636.02x = 18,395,523,628.48
  5. Step 5: Solve for x
    x = 18,395,523,628.48/151,636.02
  6. Step 6: Final answer
    x = 121,313.68

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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.