Home / 127,430.68-191,072.22-43,162.60

Finding the Fourth Proportional to 127,430.68, 191,072.22 and 43,162.60

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Solution

The fourth proportional to 127,430.68, 191,072.22 and 43,162.60 is: 64,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,430.68 : 191,072.22 = 43,162.60 : x
  2. Step 2: Convert to fraction form
    127,430.68/191,072.22 = 43,162.60/x
  3. Step 3: Cross multiply
    127,430.68x = 191,072.22 × 43,162.60
  4. Step 4: Simplify right side
    127,430.68x = 8,247,173,802.97
  5. Step 5: Solve for x
    x = 8,247,173,802.97/127,430.68
  6. Step 6: Final answer
    x = 64,718.90

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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.