Home / 143,271.40-214,907.10-137,204.20

Finding the Fourth Proportional to 143,271.40, 214,907.10 and 137,204.20

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Solution

The fourth proportional to 143,271.40, 214,907.10 and 137,204.20 is: 205,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271.40 : 214,907.10 = 137,204.20 : x
  2. Step 2: Convert to fraction form
    143,271.40/214,907.10 = 137,204.20/x
  3. Step 3: Cross multiply
    143,271.40x = 214,907.10 × 137,204.20
  4. Step 4: Simplify right side
    143,271.40x = 29,486,156,729.82
  5. Step 5: Solve for x
    x = 29,486,156,729.82/143,271.40
  6. Step 6: Final answer
    x = 205,806.30

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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.