Home / 135,264.79-186,679.38-77,906.08

Finding the Fourth Proportional to 135,264.79, 186,679.38 and 77,906.08

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Solution

The fourth proportional to 135,264.79, 186,679.38 and 77,906.08 is: 107,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,264.79 : 186,679.38 = 77,906.08 : x
  2. Step 2: Convert to fraction form
    135,264.79/186,679.38 = 77,906.08/x
  3. Step 3: Cross multiply
    135,264.79x = 186,679.38 × 77,906.08
  4. Step 4: Simplify right side
    135,264.79x = 14,543,458,712.63
  5. Step 5: Solve for x
    x = 14,543,458,712.63/135,264.79
  6. Step 6: Final answer
    x = 107,518.44

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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.