Home / 113,504.30-170,256.45-74,138.30

Finding the Fourth Proportional to 113,504.30, 170,256.45 and 74,138.30

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Solution

The fourth proportional to 113,504.30, 170,256.45 and 74,138.30 is: 111,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,504.30 : 170,256.45 = 74,138.30 : x
  2. Step 2: Convert to fraction form
    113,504.30/170,256.45 = 74,138.30/x
  3. Step 3: Cross multiply
    113,504.30x = 170,256.45 × 74,138.30
  4. Step 4: Simplify right side
    113,504.30x = 12,622,523,767.04
  5. Step 5: Solve for x
    x = 12,622,523,767.04/113,504.30
  6. Step 6: Final answer
    x = 111,207.45

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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.