Home / 115,419.34-173,120.36-40,540.14

Finding the Fourth Proportional to 115,419.34, 173,120.36 and 40,540.14

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Solution

The fourth proportional to 115,419.34, 173,120.36 and 40,540.14 is: 60,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,419.34 : 173,120.36 = 40,540.14 : x
  2. Step 2: Convert to fraction form
    115,419.34/173,120.36 = 40,540.14/x
  3. Step 3: Cross multiply
    115,419.34x = 173,120.36 × 40,540.14
  4. Step 4: Simplify right side
    115,419.34x = 7,018,323,631.25
  5. Step 5: Solve for x
    x = 7,018,323,631.25/115,419.34
  6. Step 6: Final answer
    x = 60,807.17

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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.