Home / 242,921.07-335,231.66-135,498.06

Finding the Fourth Proportional to 242,921.07, 335,231.66 and 135,498.06

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Solution

The fourth proportional to 242,921.07, 335,231.66 and 135,498.06 is: 186,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,921.07 : 335,231.66 = 135,498.06 : x
  2. Step 2: Convert to fraction form
    242,921.07/335,231.66 = 135,498.06/x
  3. Step 3: Cross multiply
    242,921.07x = 335,231.66 × 135,498.06
  4. Step 4: Simplify right side
    242,921.07x = 45,423,238,742.50
  5. Step 5: Solve for x
    x = 45,423,238,742.50/242,921.07
  6. Step 6: Final answer
    x = 186,987.65

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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.