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Finding the Fourth Proportional to 163,395.40, 245,093.10 and 137,151.40

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Solution

The fourth proportional to 163,395.40, 245,093.10 and 137,151.40 is: 205,727.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,395.40 : 245,093.10 = 137,151.40 : x
  2. Step 2: Convert to fraction form
    163,395.40/245,093.10 = 137,151.40/x
  3. Step 3: Cross multiply
    163,395.40x = 245,093.10 × 137,151.40
  4. Step 4: Simplify right side
    163,395.40x = 33,614,861,795.34
  5. Step 5: Solve for x
    x = 33,614,861,795.34/163,395.40
  6. Step 6: Final answer
    x = 205,727.10

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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.