Home / 135,150.16-186,501.72-74,716.96

Finding the Fourth Proportional to 135,150.16, 186,501.72 and 74,716.96

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Solution

The fourth proportional to 135,150.16, 186,501.72 and 74,716.96 is: 103,106.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,150.16 : 186,501.72 = 74,716.96 : x
  2. Step 2: Convert to fraction form
    135,150.16/186,501.72 = 74,716.96/x
  3. Step 3: Cross multiply
    135,150.16x = 186,501.72 × 74,716.96
  4. Step 4: Simplify right side
    135,150.16x = 13,934,841,553.17
  5. Step 5: Solve for x
    x = 13,934,841,553.17/135,150.16
  6. Step 6: Final answer
    x = 103,106.36

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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.