Home / 134,673.09-185,837.94-78,088.11

Finding the Fourth Proportional to 134,673.09, 185,837.94 and 78,088.11

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Solution

The fourth proportional to 134,673.09, 185,837.94 and 78,088.11 is: 107,755.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,673.09 : 185,837.94 = 78,088.11 : x
  2. Step 2: Convert to fraction form
    134,673.09/185,837.94 = 78,088.11/x
  3. Step 3: Cross multiply
    134,673.09x = 185,837.94 × 78,088.11
  4. Step 4: Simplify right side
    134,673.09x = 14,511,733,500.89
  5. Step 5: Solve for x
    x = 14,511,733,500.89/134,673.09
  6. Step 6: Final answer
    x = 107,755.26

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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.