Home / 135,153.37-186,508.36-74,722.46

Finding the Fourth Proportional to 135,153.37, 186,508.36 and 74,722.46

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Solution

The fourth proportional to 135,153.37, 186,508.36 and 74,722.46 is: 103,115.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,153.37 : 186,508.36 = 74,722.46 : x
  2. Step 2: Convert to fraction form
    135,153.37/186,508.36 = 74,722.46/x
  3. Step 3: Cross multiply
    135,153.37x = 186,508.36 × 74,722.46
  4. Step 4: Simplify right side
    135,153.37x = 13,936,362,630.63
  5. Step 5: Solve for x
    x = 13,936,362,630.63/135,153.37
  6. Step 6: Final answer
    x = 103,115.17

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1.5x scale

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.