Home / 142,997.44-197,341.74-86,397.88

Finding the Fourth Proportional to 142,997.44, 197,341.74 and 86,397.88

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Solution

The fourth proportional to 142,997.44, 197,341.74 and 86,397.88 is: 119,232.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,997.44 : 197,341.74 = 86,397.88 : x
  2. Step 2: Convert to fraction form
    142,997.44/197,341.74 = 86,397.88/x
  3. Step 3: Cross multiply
    142,997.44x = 197,341.74 × 86,397.88
  4. Step 4: Simplify right side
    142,997.44x = 17,049,907,971.51
  5. Step 5: Solve for x
    x = 17,049,907,971.51/142,997.44
  6. Step 6: Final answer
    x = 119,232.26

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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.