Home / 115,241.84-172,862.34-45,071.72

Finding the Fourth Proportional to 115,241.84, 172,862.34 and 45,071.72

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Solution

The fourth proportional to 115,241.84, 172,862.34 and 45,071.72 is: 67,607.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,241.84 : 172,862.34 = 45,071.72 : x
  2. Step 2: Convert to fraction form
    115,241.84/172,862.34 = 45,071.72/x
  3. Step 3: Cross multiply
    115,241.84x = 172,862.34 × 45,071.72
  4. Step 4: Simplify right side
    115,241.84x = 7,791,202,987.02
  5. Step 5: Solve for x
    x = 7,791,202,987.02/115,241.84
  6. Step 6: Final answer
    x = 67,607.42

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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.