Home / 103,234.44-142,312.71-72,966.36

Finding the Fourth Proportional to 103,234.44, 142,312.71 and 72,966.36

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Solution

The fourth proportional to 103,234.44, 142,312.71 and 72,966.36 is: 100,586.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,234.44 : 142,312.71 = 72,966.36 : x
  2. Step 2: Convert to fraction form
    103,234.44/142,312.71 = 72,966.36/x
  3. Step 3: Cross multiply
    103,234.44x = 142,312.71 × 72,966.36
  4. Step 4: Simplify right side
    103,234.44x = 10,384,040,430.44
  5. Step 5: Solve for x
    x = 10,384,040,430.44/103,234.44
  6. Step 6: Final answer
    x = 100,586.98

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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.