Home / 181,719.60-272,482.20-76,419.60

Finding the Fourth Proportional to 181,719.60, 272,482.20 and 76,419.60

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Solution

The fourth proportional to 181,719.60, 272,482.20 and 76,419.60 is: 114,588.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,719.60 : 272,482.20 = 76,419.60 : x
  2. Step 2: Convert to fraction form
    181,719.60/272,482.20 = 76,419.60/x
  3. Step 3: Cross multiply
    181,719.60x = 272,482.20 × 76,419.60
  4. Step 4: Simplify right side
    181,719.60x = 20,822,980,731.12
  5. Step 5: Solve for x
    x = 20,822,980,731.12/181,719.60
  6. Step 6: Final answer
    x = 114,588.52

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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.