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Finding the Fourth Proportional to 163,424.82, 245,168.10 and 56,804.70

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Solution

The fourth proportional to 163,424.82, 245,168.10 and 56,804.70 is: 85,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,424.82 : 245,168.10 = 56,804.70 : x
  2. Step 2: Convert to fraction form
    163,424.82/245,168.10 = 56,804.70/x
  3. Step 3: Cross multiply
    163,424.82x = 245,168.10 × 56,804.70
  4. Step 4: Simplify right side
    163,424.82x = 13,926,700,370.07
  5. Step 5: Solve for x
    x = 13,926,700,370.07/163,424.82
  6. Step 6: Final answer
    x = 85,217.78

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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.