Home / 113,971.06-170,864.97-78,326.74

Finding the Fourth Proportional to 113,971.06, 170,864.97 and 78,326.74

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Solution

The fourth proportional to 113,971.06, 170,864.97 and 78,326.74 is: 117,427.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,971.06 : 170,864.97 = 78,326.74 : x
  2. Step 2: Convert to fraction form
    113,971.06/170,864.97 = 78,326.74/x
  3. Step 3: Cross multiply
    113,971.06x = 170,864.97 × 78,326.74
  4. Step 4: Simplify right side
    113,971.06x = 13,383,296,080.30
  5. Step 5: Solve for x
    x = 13,383,296,080.30/113,971.06
  6. Step 6: Final answer
    x = 117,427.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.