Home / 517,109.36-775,681-143,101.04

Finding the Fourth Proportional to 517,109.36, 775,681 and 143,101.04

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Solution

The fourth proportional to 517,109.36, 775,681 and 143,101.04 is: 214,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,109.36 : 775,681 = 143,101.04 : x
  2. Step 2: Convert to fraction form
    517,109.36/775,681 = 143,101.04/x
  3. Step 3: Cross multiply
    517,109.36x = 775,681 × 143,101.04
  4. Step 4: Simplify right side
    517,109.36x = 111,000,757,808.24
  5. Step 5: Solve for x
    x = 111,000,757,808.24/517,109.36
  6. Step 6: Final answer
    x = 214,656.25

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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.