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Finding the Fourth Proportional to 144,885.33, 200,133.90 and 120,765.47

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Solution

The fourth proportional to 144,885.33, 200,133.90 and 120,765.47 is: 166,816.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,885.33 : 200,133.90 = 120,765.47 : x
  2. Step 2: Convert to fraction form
    144,885.33/200,133.90 = 120,765.47/x
  3. Step 3: Cross multiply
    144,885.33x = 200,133.90 × 120,765.47
  4. Step 4: Simplify right side
    144,885.33x = 24,169,263,495.76
  5. Step 5: Solve for x
    x = 24,169,263,495.76/144,885.33
  6. Step 6: Final answer
    x = 166,816.50

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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.