Home / 135,416.54-186,852.83-78,058.22

Finding the Fourth Proportional to 135,416.54, 186,852.83 and 78,058.22

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Solution

The fourth proportional to 135,416.54, 186,852.83 and 78,058.22 is: 107,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,416.54 : 186,852.83 = 78,058.22 : x
  2. Step 2: Convert to fraction form
    135,416.54/186,852.83 = 78,058.22/x
  3. Step 3: Cross multiply
    135,416.54x = 186,852.83 × 78,058.22
  4. Step 4: Simplify right side
    135,416.54x = 14,585,397,987.21
  5. Step 5: Solve for x
    x = 14,585,397,987.21/135,416.54
  6. Step 6: Final answer
    x = 107,707.65

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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.