Home / 181,985.40-272,986.20-69,719.40

Finding the Fourth Proportional to 181,985.40, 272,986.20 and 69,719.40

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Solution

The fourth proportional to 181,985.40, 272,986.20 and 69,719.40 is: 104,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,985.40 : 272,986.20 = 69,719.40 : x
  2. Step 2: Convert to fraction form
    181,985.40/272,986.20 = 69,719.40/x
  3. Step 3: Cross multiply
    181,985.40x = 272,986.20 × 69,719.40
  4. Step 4: Simplify right side
    181,985.40x = 19,032,434,072.28
  5. Step 5: Solve for x
    x = 19,032,434,072.28/181,985.40
  6. Step 6: Final answer
    x = 104,582.20

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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.