Home / 143,036.48-197,361.60-86,451.04

Finding the Fourth Proportional to 143,036.48, 197,361.60 and 86,451.04

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Solution

The fourth proportional to 143,036.48, 197,361.60 and 86,451.04 is: 119,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,036.48 : 197,361.60 = 86,451.04 : x
  2. Step 2: Convert to fraction form
    143,036.48/197,361.60 = 86,451.04/x
  3. Step 3: Cross multiply
    143,036.48x = 197,361.60 × 86,451.04
  4. Step 4: Simplify right side
    143,036.48x = 17,062,115,576.06
  5. Step 5: Solve for x
    x = 17,062,115,576.06/143,036.48
  6. Step 6: Final answer
    x = 119,285.06

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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.