Home / 158,837.67-219,199.80-86,243.64

Finding the Fourth Proportional to 158,837.67, 219,199.80 and 86,243.64

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Solution

The fourth proportional to 158,837.67, 219,199.80 and 86,243.64 is: 119,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,837.67 : 219,199.80 = 86,243.64 : x
  2. Step 2: Convert to fraction form
    158,837.67/219,199.80 = 86,243.64/x
  3. Step 3: Cross multiply
    158,837.67x = 219,199.80 × 86,243.64
  4. Step 4: Simplify right side
    158,837.67x = 18,904,588,639.27
  5. Step 5: Solve for x
    x = 18,904,588,639.27/158,837.67
  6. Step 6: Final answer
    x = 119,018.29

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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.