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Finding the Fourth Proportional to 140,041.89, 210,090.15 and 45,295.56

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Solution

The fourth proportional to 140,041.89, 210,090.15 and 45,295.56 is: 67,952.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,041.89 : 210,090.15 = 45,295.56 : x
  2. Step 2: Convert to fraction form
    140,041.89/210,090.15 = 45,295.56/x
  3. Step 3: Cross multiply
    140,041.89x = 210,090.15 × 45,295.56
  4. Step 4: Simplify right side
    140,041.89x = 9,516,150,994.73
  5. Step 5: Solve for x
    x = 9,516,150,994.73/140,041.89
  6. Step 6: Final answer
    x = 67,952.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.