Home / 181,587.60-272,284.20-76,287.60

Finding the Fourth Proportional to 181,587.60, 272,284.20 and 76,287.60

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Solution

The fourth proportional to 181,587.60, 272,284.20 and 76,287.60 is: 114,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,587.60 : 272,284.20 = 76,287.60 : x
  2. Step 2: Convert to fraction form
    181,587.60/272,284.20 = 76,287.60/x
  3. Step 3: Cross multiply
    181,587.60x = 272,284.20 × 76,287.60
  4. Step 4: Simplify right side
    181,587.60x = 20,771,908,135.92
  5. Step 5: Solve for x
    x = 20,771,908,135.92/181,587.60
  6. Step 6: Final answer
    x = 114,390.56

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1.5x scale

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.