Home / 181,743.60-272,615.40-115,258.80

Finding the Fourth Proportional to 181,743.60, 272,615.40 and 115,258.80

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Solution

The fourth proportional to 181,743.60, 272,615.40 and 115,258.80 is: 172,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,743.60 : 272,615.40 = 115,258.80 : x
  2. Step 2: Convert to fraction form
    181,743.60/272,615.40 = 115,258.80/x
  3. Step 3: Cross multiply
    181,743.60x = 272,615.40 × 115,258.80
  4. Step 4: Simplify right side
    181,743.60x = 31,421,323,865.52
  5. Step 5: Solve for x
    x = 31,421,323,865.52/181,743.60
  6. Step 6: Final answer
    x = 172,888.20

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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.