Home / 135,001.22-186,290.89-78,416.24

Finding the Fourth Proportional to 135,001.22, 186,290.89 and 78,416.24

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Solution

The fourth proportional to 135,001.22, 186,290.89 and 78,416.24 is: 108,208.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,001.22 : 186,290.89 = 78,416.24 : x
  2. Step 2: Convert to fraction form
    135,001.22/186,290.89 = 78,416.24/x
  3. Step 3: Cross multiply
    135,001.22x = 186,290.89 × 78,416.24
  4. Step 4: Simplify right side
    135,001.22x = 14,608,230,012.56
  5. Step 5: Solve for x
    x = 14,608,230,012.56/135,001.22
  6. Step 6: Final answer
    x = 108,208.14

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1.5x scale

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.