Home / 127,430.31-191,071.66-43,162.23

Finding the Fourth Proportional to 127,430.31, 191,071.66 and 43,162.23

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Solution

The fourth proportional to 127,430.31, 191,071.66 and 43,162.23 is: 64,718.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,430.31 : 191,071.66 = 43,162.23 : x
  2. Step 2: Convert to fraction form
    127,430.31/191,071.66 = 43,162.23/x
  3. Step 3: Cross multiply
    127,430.31x = 191,071.66 × 43,162.23
  4. Step 4: Simplify right side
    127,430.31x = 8,247,077,872.14
  5. Step 5: Solve for x
    x = 8,247,077,872.14/127,430.31
  6. Step 6: Final answer
    x = 64,718.34

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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.