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Finding the Fourth Proportional to 163,671.68, 245,512.80 and 45,344.16

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Solution

The fourth proportional to 163,671.68, 245,512.80 and 45,344.16 is: 68,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,671.68 : 245,512.80 = 45,344.16 : x
  2. Step 2: Convert to fraction form
    163,671.68/245,512.80 = 45,344.16/x
  3. Step 3: Cross multiply
    163,671.68x = 245,512.80 × 45,344.16
  4. Step 4: Simplify right side
    163,671.68x = 11,132,571,685.25
  5. Step 5: Solve for x
    x = 11,132,571,685.25/163,671.68
  6. Step 6: Final answer
    x = 68,017.70

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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.