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Finding the Fourth Proportional to 163,429.60, 245,374.80 and 101,221.60

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Solution

The fourth proportional to 163,429.60, 245,374.80 and 101,221.60 is: 151,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,429.60 : 245,374.80 = 101,221.60 : x
  2. Step 2: Convert to fraction form
    163,429.60/245,374.80 = 101,221.60/x
  3. Step 3: Cross multiply
    163,429.60x = 245,374.80 × 101,221.60
  4. Step 4: Simplify right side
    163,429.60x = 24,837,229,855.68
  5. Step 5: Solve for x
    x = 24,837,229,855.68/163,429.60
  6. Step 6: Final answer
    x = 151,975.10

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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.