Home / 127,869.20-191,803.80-44,771.60

Finding the Fourth Proportional to 127,869.20, 191,803.80 and 44,771.60

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Solution

The fourth proportional to 127,869.20, 191,803.80 and 44,771.60 is: 67,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,869.20 : 191,803.80 = 44,771.60 : x
  2. Step 2: Convert to fraction form
    127,869.20/191,803.80 = 44,771.60/x
  3. Step 3: Cross multiply
    127,869.20x = 191,803.80 × 44,771.60
  4. Step 4: Simplify right side
    127,869.20x = 8,587,363,012.08
  5. Step 5: Solve for x
    x = 8,587,363,012.08/127,869.20
  6. Step 6: Final answer
    x = 67,157.40

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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.