Home / 109,370.20-164,055.30-74,378.20

Finding the Fourth Proportional to 109,370.20, 164,055.30 and 74,378.20

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Solution

The fourth proportional to 109,370.20, 164,055.30 and 74,378.20 is: 111,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,370.20 : 164,055.30 = 74,378.20 : x
  2. Step 2: Convert to fraction form
    109,370.20/164,055.30 = 74,378.20/x
  3. Step 3: Cross multiply
    109,370.20x = 164,055.30 × 74,378.20
  4. Step 4: Simplify right side
    109,370.20x = 12,202,137,914.46
  5. Step 5: Solve for x
    x = 12,202,137,914.46/109,370.20
  6. Step 6: Final answer
    x = 111,567.30

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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.