Home / 115,435.89-159,289.39-67,028.36

Finding the Fourth Proportional to 115,435.89, 159,289.39 and 67,028.36

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Solution

The fourth proportional to 115,435.89, 159,289.39 and 67,028.36 is: 92,492.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,435.89 : 159,289.39 = 67,028.36 : x
  2. Step 2: Convert to fraction form
    115,435.89/159,289.39 = 67,028.36/x
  3. Step 3: Cross multiply
    115,435.89x = 159,289.39 × 67,028.36
  4. Step 4: Simplify right side
    115,435.89x = 10,676,905,445.51
  5. Step 5: Solve for x
    x = 10,676,905,445.51/115,435.89
  6. Step 6: Final answer
    x = 92,492.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.