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Finding the Fourth Proportional to 144,901.90, 199,936.92 and 87,529.60

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Solution

The fourth proportional to 144,901.90, 199,936.92 and 87,529.60 is: 120,774.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,901.90 : 199,936.92 = 87,529.60 : x
  2. Step 2: Convert to fraction form
    144,901.90/199,936.92 = 87,529.60/x
  3. Step 3: Cross multiply
    144,901.90x = 199,936.92 × 87,529.60
  4. Step 4: Simplify right side
    144,901.90x = 17,500,398,632.83
  5. Step 5: Solve for x
    x = 17,500,398,632.83/144,901.90
  6. Step 6: Final answer
    x = 120,774.11

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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.