Home / 102,388.22-141,291.26-57,071.16

Finding the Fourth Proportional to 102,388.22, 141,291.26 and 57,071.16

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Solution

The fourth proportional to 102,388.22, 141,291.26 and 57,071.16 is: 78,755.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,388.22 : 141,291.26 = 57,071.16 : x
  2. Step 2: Convert to fraction form
    102,388.22/141,291.26 = 57,071.16/x
  3. Step 3: Cross multiply
    102,388.22x = 141,291.26 × 57,071.16
  4. Step 4: Simplify right side
    102,388.22x = 8,063,656,106.06
  5. Step 5: Solve for x
    x = 8,063,656,106.06/102,388.22
  6. Step 6: Final answer
    x = 78,755.70

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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.