Home / 163,611.20-245,408.16-45,286.40

Finding the Fourth Proportional to 163,611.20, 245,408.16 and 45,286.40

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Solution

The fourth proportional to 163,611.20, 245,408.16 and 45,286.40 is: 67,927.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,611.20 : 245,408.16 = 45,286.40 : x
  2. Step 2: Convert to fraction form
    163,611.20/245,408.16 = 45,286.40/x
  3. Step 3: Cross multiply
    163,611.20x = 245,408.16 × 45,286.40
  4. Step 4: Simplify right side
    163,611.20x = 11,113,652,097.02
  5. Step 5: Solve for x
    x = 11,113,652,097.02/163,611.20
  6. Step 6: Final answer
    x = 67,927.21

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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.