Home / 74,150.20-111,225.30-18,746.20

Finding the Fourth Proportional to 74,150.20, 111,225.30 and 18,746.20

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Solution

The fourth proportional to 74,150.20, 111,225.30 and 18,746.20 is: 28,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150.20 : 111,225.30 = 18,746.20 : x
  2. Step 2: Convert to fraction form
    74,150.20/111,225.30 = 18,746.20/x
  3. Step 3: Cross multiply
    74,150.20x = 111,225.30 × 18,746.20
  4. Step 4: Simplify right side
    74,150.20x = 2,085,051,718.86
  5. Step 5: Solve for x
    x = 2,085,051,718.86/74,150.20
  6. Step 6: Final answer
    x = 28,119.30

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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.