Home / 131,886.10-197,914.20-72,764.20

Finding the Fourth Proportional to 131,886.10, 197,914.20 and 72,764.20

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Solution

The fourth proportional to 131,886.10, 197,914.20 and 72,764.20 is: 109,193.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,886.10 : 197,914.20 = 72,764.20 : x
  2. Step 2: Convert to fraction form
    131,886.10/197,914.20 = 72,764.20/x
  3. Step 3: Cross multiply
    131,886.10x = 197,914.20 × 72,764.20
  4. Step 4: Simplify right side
    131,886.10x = 14,401,068,431.64
  5. Step 5: Solve for x
    x = 14,401,068,431.64/131,886.10
  6. Step 6: Final answer
    x = 109,193.22

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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.