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Finding the Fourth Proportional to 101,560.47, 152,359.73 and 45,402.81

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Solution

The fourth proportional to 101,560.47, 152,359.73 and 45,402.81 is: 68,112.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,560.47 : 152,359.73 = 45,402.81 : x
  2. Step 2: Convert to fraction form
    101,560.47/152,359.73 = 45,402.81/x
  3. Step 3: Cross multiply
    101,560.47x = 152,359.73 × 45,402.81
  4. Step 4: Simplify right side
    101,560.47x = 6,917,559,872.84
  5. Step 5: Solve for x
    x = 6,917,559,872.84/101,560.47
  6. Step 6: Final answer
    x = 68,112.72

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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.