Home / 143,457.06-197,889.84-86,081.13

Finding the Fourth Proportional to 143,457.06, 197,889.84 and 86,081.13

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Solution

The fourth proportional to 143,457.06, 197,889.84 and 86,081.13 is: 118,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,457.06 : 197,889.84 = 86,081.13 : x
  2. Step 2: Convert to fraction form
    143,457.06/197,889.84 = 86,081.13/x
  3. Step 3: Cross multiply
    143,457.06x = 197,889.84 × 86,081.13
  4. Step 4: Simplify right side
    143,457.06x = 17,034,581,042.72
  5. Step 5: Solve for x
    x = 17,034,581,042.72/143,457.06
  6. Step 6: Final answer
    x = 118,743.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.