Home / 334,438.14-501,655.35-81,720.03

Finding the Fourth Proportional to 334,438.14, 501,655.35 and 81,720.03

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Solution

The fourth proportional to 334,438.14, 501,655.35 and 81,720.03 is: 122,579.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,438.14 : 501,655.35 = 81,720.03 : x
  2. Step 2: Convert to fraction form
    334,438.14/501,655.35 = 81,720.03/x
  3. Step 3: Cross multiply
    334,438.14x = 501,655.35 × 81,720.03
  4. Step 4: Simplify right side
    334,438.14x = 40,995,287,743.38
  5. Step 5: Solve for x
    x = 40,995,287,743.38/334,438.14
  6. Step 6: Final answer
    x = 122,579.58

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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.