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Finding the Fourth Proportional to 163,678.62, 245,490.58 and 45,361.92

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Solution

The fourth proportional to 163,678.62, 245,490.58 and 45,361.92 is: 68,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,678.62 : 245,490.58 = 45,361.92 : x
  2. Step 2: Convert to fraction form
    163,678.62/245,490.58 = 45,361.92/x
  3. Step 3: Cross multiply
    163,678.62x = 245,490.58 × 45,361.92
  4. Step 4: Simplify right side
    163,678.62x = 11,135,924,050.71
  5. Step 5: Solve for x
    x = 11,135,924,050.71/163,678.62
  6. Step 6: Final answer
    x = 68,035.30

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1.5x scale

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.