Home / 131,611.60-197,417.40-89,621.20

Finding the Fourth Proportional to 131,611.60, 197,417.40 and 89,621.20

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Solution

The fourth proportional to 131,611.60, 197,417.40 and 89,621.20 is: 134,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,611.60 : 197,417.40 = 89,621.20 : x
  2. Step 2: Convert to fraction form
    131,611.60/197,417.40 = 89,621.20/x
  3. Step 3: Cross multiply
    131,611.60x = 197,417.40 × 89,621.20
  4. Step 4: Simplify right side
    131,611.60x = 17,692,784,288.88
  5. Step 5: Solve for x
    x = 17,692,784,288.88/131,611.60
  6. Step 6: Final answer
    x = 134,431.80

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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.