Home / 135,058.32-186,380.06-74,628.68

Finding the Fourth Proportional to 135,058.32, 186,380.06 and 74,628.68

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Solution

The fourth proportional to 135,058.32, 186,380.06 and 74,628.68 is: 102,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,058.32 : 186,380.06 = 74,628.68 : x
  2. Step 2: Convert to fraction form
    135,058.32/186,380.06 = 74,628.68/x
  3. Step 3: Cross multiply
    135,058.32x = 186,380.06 × 74,628.68
  4. Step 4: Simplify right side
    135,058.32x = 13,909,296,551.08
  5. Step 5: Solve for x
    x = 13,909,296,551.08/135,058.32
  6. Step 6: Final answer
    x = 102,987.34

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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.