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Finding the Fourth Proportional to 163,754.16, 245,744.04 and 57,138.72

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Solution

The fourth proportional to 163,754.16, 245,744.04 and 57,138.72 is: 85,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,754.16 : 245,744.04 = 57,138.72 : x
  2. Step 2: Convert to fraction form
    163,754.16/245,744.04 = 57,138.72/x
  3. Step 3: Cross multiply
    163,754.16x = 245,744.04 × 57,138.72
  4. Step 4: Simplify right side
    163,754.16x = 14,041,499,893.23
  5. Step 5: Solve for x
    x = 14,041,499,893.23/163,754.16
  6. Step 6: Final answer
    x = 85,747.44

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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.