Home / 147,420.76-203,426.60-86,181.27

Finding the Fourth Proportional to 147,420.76, 203,426.60 and 86,181.27

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Solution

The fourth proportional to 147,420.76, 203,426.60 and 86,181.27 is: 118,921.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,420.76 : 203,426.60 = 86,181.27 : x
  2. Step 2: Convert to fraction form
    147,420.76/203,426.60 = 86,181.27/x
  3. Step 3: Cross multiply
    147,420.76x = 203,426.60 × 86,181.27
  4. Step 4: Simplify right side
    147,420.76x = 17,531,562,739.78
  5. Step 5: Solve for x
    x = 17,531,562,739.78/147,420.76
  6. Step 6: Final answer
    x = 118,921.94

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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.