Home / 165,905.40-248,663.70-124,303.80

Finding the Fourth Proportional to 165,905.40, 248,663.70 and 124,303.80

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Solution

The fourth proportional to 165,905.40, 248,663.70 and 124,303.80 is: 186,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,905.40 : 248,663.70 = 124,303.80 : x
  2. Step 2: Convert to fraction form
    165,905.40/248,663.70 = 124,303.80/x
  3. Step 3: Cross multiply
    165,905.40x = 248,663.70 × 124,303.80
  4. Step 4: Simplify right side
    165,905.40x = 30,909,842,832.06
  5. Step 5: Solve for x
    x = 30,909,842,832.06/165,905.40
  6. Step 6: Final answer
    x = 186,310.05

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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.