Home / 143,919.02-215,861.70-38,729.72

Finding the Fourth Proportional to 143,919.02, 215,861.70 and 38,729.72

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Solution

The fourth proportional to 143,919.02, 215,861.70 and 38,729.72 is: 58,090.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,919.02 : 215,861.70 = 38,729.72 : x
  2. Step 2: Convert to fraction form
    143,919.02/215,861.70 = 38,729.72/x
  3. Step 3: Cross multiply
    143,919.02x = 215,861.70 × 38,729.72
  4. Step 4: Simplify right side
    143,919.02x = 8,360,263,199.72
  5. Step 5: Solve for x
    x = 8,360,263,199.72/143,919.02
  6. Step 6: Final answer
    x = 58,090.05

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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.