Home / 114,899.78-158,518.13-71,272.10

Finding the Fourth Proportional to 114,899.78, 158,518.13 and 71,272.10

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Solution

The fourth proportional to 114,899.78, 158,518.13 and 71,272.10 is: 98,328.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,899.78 : 158,518.13 = 71,272.10 : x
  2. Step 2: Convert to fraction form
    114,899.78/158,518.13 = 71,272.10/x
  3. Step 3: Cross multiply
    114,899.78x = 158,518.13 × 71,272.10
  4. Step 4: Simplify right side
    114,899.78x = 11,297,918,864.22
  5. Step 5: Solve for x
    x = 11,297,918,864.22/114,899.78
  6. Step 6: Final answer
    x = 98,328.47

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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.