Home / 145,622.20-218,433.30-40,442.20

Finding the Fourth Proportional to 145,622.20, 218,433.30 and 40,442.20

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Solution

The fourth proportional to 145,622.20, 218,433.30 and 40,442.20 is: 60,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,622.20 : 218,433.30 = 40,442.20 : x
  2. Step 2: Convert to fraction form
    145,622.20/218,433.30 = 40,442.20/x
  3. Step 3: Cross multiply
    145,622.20x = 218,433.30 × 40,442.20
  4. Step 4: Simplify right side
    145,622.20x = 8,833,923,205.26
  5. Step 5: Solve for x
    x = 8,833,923,205.26/145,622.20
  6. Step 6: Final answer
    x = 60,663.30

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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.