Home / 134,710.43-185,901.68-74,283.21

Finding the Fourth Proportional to 134,710.43, 185,901.68 and 74,283.21

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Solution

The fourth proportional to 134,710.43, 185,901.68 and 74,283.21 is: 102,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,710.43 : 185,901.68 = 74,283.21 : x
  2. Step 2: Convert to fraction form
    134,710.43/185,901.68 = 74,283.21/x
  3. Step 3: Cross multiply
    134,710.43x = 185,901.68 × 74,283.21
  4. Step 4: Simplify right side
    134,710.43x = 13,809,373,720.50
  5. Step 5: Solve for x
    x = 13,809,373,720.50/134,710.43
  6. Step 6: Final answer
    x = 102,511.54

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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.