Home / 143,266.10-214,899.15-72,407.30

Finding the Fourth Proportional to 143,266.10, 214,899.15 and 72,407.30

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Solution

The fourth proportional to 143,266.10, 214,899.15 and 72,407.30 is: 108,610.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,266.10 : 214,899.15 = 72,407.30 : x
  2. Step 2: Convert to fraction form
    143,266.10/214,899.15 = 72,407.30/x
  3. Step 3: Cross multiply
    143,266.10x = 214,899.15 × 72,407.30
  4. Step 4: Simplify right side
    143,266.10x = 15,560,267,223.80
  5. Step 5: Solve for x
    x = 15,560,267,223.80/143,266.10
  6. Step 6: Final answer
    x = 108,610.95

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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.