Home / 127,390.12-191,087.08-48,508.72

Finding the Fourth Proportional to 127,390.12, 191,087.08 and 48,508.72

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Solution

The fourth proportional to 127,390.12, 191,087.08 and 48,508.72 is: 72,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,390.12 : 191,087.08 = 48,508.72 : x
  2. Step 2: Convert to fraction form
    127,390.12/191,087.08 = 48,508.72/x
  3. Step 3: Cross multiply
    127,390.12x = 191,087.08 × 48,508.72
  4. Step 4: Simplify right side
    127,390.12x = 9,269,389,659.34
  5. Step 5: Solve for x
    x = 9,269,389,659.34/127,390.12
  6. Step 6: Final answer
    x = 72,763.80

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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.