Home / 116,871.04-161,237.60-71,512.64

Finding the Fourth Proportional to 116,871.04, 161,237.60 and 71,512.64

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Solution

The fourth proportional to 116,871.04, 161,237.60 and 71,512.64 is: 98,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,871.04 : 161,237.60 = 71,512.64 : x
  2. Step 2: Convert to fraction form
    116,871.04/161,237.60 = 71,512.64/x
  3. Step 3: Cross multiply
    116,871.04x = 161,237.60 × 71,512.64
  4. Step 4: Simplify right side
    116,871.04x = 11,530,526,443.26
  5. Step 5: Solve for x
    x = 11,530,526,443.26/116,871.04
  6. Step 6: Final answer
    x = 98,660.25

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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.