Home / 113,343.90-170,015.85-68,243.10

Finding the Fourth Proportional to 113,343.90, 170,015.85 and 68,243.10

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Solution

The fourth proportional to 113,343.90, 170,015.85 and 68,243.10 is: 102,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,343.90 : 170,015.85 = 68,243.10 : x
  2. Step 2: Convert to fraction form
    113,343.90/170,015.85 = 68,243.10/x
  3. Step 3: Cross multiply
    113,343.90x = 170,015.85 × 68,243.10
  4. Step 4: Simplify right side
    113,343.90x = 11,602,408,653.14
  5. Step 5: Solve for x
    x = 11,602,408,653.14/113,343.90
  6. Step 6: Final answer
    x = 102,364.65

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1.5x scale

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.