Home / 103,743.43-143,164.53-58,421.98

Finding the Fourth Proportional to 103,743.43, 143,164.53 and 58,421.98

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Solution

The fourth proportional to 103,743.43, 143,164.53 and 58,421.98 is: 80,621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,743.43 : 143,164.53 = 58,421.98 : x
  2. Step 2: Convert to fraction form
    103,743.43/143,164.53 = 58,421.98/x
  3. Step 3: Cross multiply
    103,743.43x = 143,164.53 × 58,421.98
  4. Step 4: Simplify right side
    103,743.43x = 8,363,955,308.37
  5. Step 5: Solve for x
    x = 8,363,955,308.37/103,743.43
  6. Step 6: Final answer
    x = 80,621.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.