Home / 127,615.10-191,358.86-74,325.20

Finding the Fourth Proportional to 127,615.10, 191,358.86 and 74,325.20

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Solution

The fourth proportional to 127,615.10, 191,358.86 and 74,325.20 is: 111,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.10 : 191,358.86 = 74,325.20 : x
  2. Step 2: Convert to fraction form
    127,615.10/191,358.86 = 74,325.20/x
  3. Step 3: Cross multiply
    127,615.10x = 191,358.86 × 74,325.20
  4. Step 4: Simplify right side
    127,615.10x = 14,222,784,212.85
  5. Step 5: Solve for x
    x = 14,222,784,212.85/127,615.10
  6. Step 6: Final answer
    x = 111,450.64

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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.