Home / 143,515.02-215,272.71-68,617.56

Finding the Fourth Proportional to 143,515.02, 215,272.71 and 68,617.56

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Solution

The fourth proportional to 143,515.02, 215,272.71 and 68,617.56 is: 102,926.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,515.02 : 215,272.71 = 68,617.56 : x
  2. Step 2: Convert to fraction form
    143,515.02/215,272.71 = 68,617.56/x
  3. Step 3: Cross multiply
    143,515.02x = 215,272.71 × 68,617.56
  4. Step 4: Simplify right side
    143,515.02x = 14,771,488,094.79
  5. Step 5: Solve for x
    x = 14,771,488,094.79/143,515.02
  6. Step 6: Final answer
    x = 102,926.43

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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.