Home / 134,571.03-185,707.15-74,140.28

Finding the Fourth Proportional to 134,571.03, 185,707.15 and 74,140.28

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Solution

The fourth proportional to 134,571.03, 185,707.15 and 74,140.28 is: 102,313.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,571.03 : 185,707.15 = 74,140.28 : x
  2. Step 2: Convert to fraction form
    134,571.03/185,707.15 = 74,140.28/x
  3. Step 3: Cross multiply
    134,571.03x = 185,707.15 × 74,140.28
  4. Step 4: Simplify right side
    134,571.03x = 13,768,380,099.00
  5. Step 5: Solve for x
    x = 13,768,380,099.00/134,571.03
  6. Step 6: Final answer
    x = 102,313.11

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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.