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Finding the Fourth Proportional to 102,340.53, 153,464.27 and 43,143.89

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Solution

The fourth proportional to 102,340.53, 153,464.27 and 43,143.89 is: 64,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,340.53 : 153,464.27 = 43,143.89 : x
  2. Step 2: Convert to fraction form
    102,340.53/153,464.27 = 43,143.89/x
  3. Step 3: Cross multiply
    102,340.53x = 153,464.27 × 43,143.89
  4. Step 4: Simplify right side
    102,340.53x = 6,621,044,600.77
  5. Step 5: Solve for x
    x = 6,621,044,600.77/102,340.53
  6. Step 6: Final answer
    x = 64,696.21

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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.