Home / 134,135.70-185,054.22-86,416.88

Finding the Fourth Proportional to 134,135.70, 185,054.22 and 86,416.88

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Solution

The fourth proportional to 134,135.70, 185,054.22 and 86,416.88 is: 119,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,135.70 : 185,054.22 = 86,416.88 : x
  2. Step 2: Convert to fraction form
    134,135.70/185,054.22 = 86,416.88/x
  3. Step 3: Cross multiply
    134,135.70x = 185,054.22 × 86,416.88
  4. Step 4: Simplify right side
    134,135.70x = 15,991,807,397.96
  5. Step 5: Solve for x
    x = 15,991,807,397.96/134,135.70
  6. Step 6: Final answer
    x = 119,221.12

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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.