Home / 143,271.20-214,908.60-43,432.40

Finding the Fourth Proportional to 143,271.20, 214,908.60 and 43,432.40

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Solution

The fourth proportional to 143,271.20, 214,908.60 and 43,432.40 is: 65,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271.20 : 214,908.60 = 43,432.40 : x
  2. Step 2: Convert to fraction form
    143,271.20/214,908.60 = 43,432.40/x
  3. Step 3: Cross multiply
    143,271.20x = 214,908.60 × 43,432.40
  4. Step 4: Simplify right side
    143,271.20x = 9,333,996,278.64
  5. Step 5: Solve for x
    x = 9,333,996,278.64/143,271.20
  6. Step 6: Final answer
    x = 65,149.15

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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.