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Finding the Fourth Proportional to 163,449.60, 245,169.52 and 45,128.16

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Solution

The fourth proportional to 163,449.60, 245,169.52 and 45,128.16 is: 67,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,449.60 : 245,169.52 = 45,128.16 : x
  2. Step 2: Convert to fraction form
    163,449.60/245,169.52 = 45,128.16/x
  3. Step 3: Cross multiply
    163,449.60x = 245,169.52 × 45,128.16
  4. Step 4: Simplify right side
    163,449.60x = 11,064,049,325.68
  5. Step 5: Solve for x
    x = 11,064,049,325.68/163,449.60
  6. Step 6: Final answer
    x = 67,690.89

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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.