Home / 113,731.04-170,392.26-66,958.40

Finding the Fourth Proportional to 113,731.04, 170,392.26 and 66,958.40

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Solution

The fourth proportional to 113,731.04, 170,392.26 and 66,958.40 is: 100,317.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,731.04 : 170,392.26 = 66,958.40 : x
  2. Step 2: Convert to fraction form
    113,731.04/170,392.26 = 66,958.40/x
  3. Step 3: Cross multiply
    113,731.04x = 170,392.26 × 66,958.40
  4. Step 4: Simplify right side
    113,731.04x = 11,409,193,101.98
  5. Step 5: Solve for x
    x = 11,409,193,101.98/113,731.04
  6. Step 6: Final answer
    x = 100,317.32

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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.