Home / 163,621.68-245,432.16-45,292.64

Finding the Fourth Proportional to 163,621.68, 245,432.16 and 45,292.64

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Solution

The fourth proportional to 163,621.68, 245,432.16 and 45,292.64 is: 67,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,621.68 : 245,432.16 = 45,292.64 : x
  2. Step 2: Convert to fraction form
    163,621.68/245,432.16 = 45,292.64/x
  3. Step 3: Cross multiply
    163,621.68x = 245,432.16 × 45,292.64
  4. Step 4: Simplify right side
    163,621.68x = 11,116,270,467.30
  5. Step 5: Solve for x
    x = 11,116,270,467.30/163,621.68
  6. Step 6: Final answer
    x = 67,938.86

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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.