Home / 135,352.48-186,784.16-74,921.82

Finding the Fourth Proportional to 135,352.48, 186,784.16 and 74,921.82

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Solution

The fourth proportional to 135,352.48, 186,784.16 and 74,921.82 is: 103,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,352.48 : 186,784.16 = 74,921.82 : x
  2. Step 2: Convert to fraction form
    135,352.48/186,784.16 = 74,921.82/x
  3. Step 3: Cross multiply
    135,352.48x = 186,784.16 × 74,921.82
  4. Step 4: Simplify right side
    135,352.48x = 13,994,209,214.37
  5. Step 5: Solve for x
    x = 13,994,209,214.37/135,352.48
  6. Step 6: Final answer
    x = 103,390.86

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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.