Home / 103,537.26-155,527.02-74,143.98

Finding the Fourth Proportional to 103,537.26, 155,527.02 and 74,143.98

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Solution

The fourth proportional to 103,537.26, 155,527.02 and 74,143.98 is: 111,374.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,537.26 : 155,527.02 = 74,143.98 : x
  2. Step 2: Convert to fraction form
    103,537.26/155,527.02 = 74,143.98/x
  3. Step 3: Cross multiply
    103,537.26x = 155,527.02 × 74,143.98
  4. Step 4: Simplify right side
    103,537.26x = 11,531,392,260.34
  5. Step 5: Solve for x
    x = 11,531,392,260.34/103,537.26
  6. Step 6: Final answer
    x = 111,374.32

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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.