Home / 136,935.01-188,937.92-79,540.23

Finding the Fourth Proportional to 136,935.01, 188,937.92 and 79,540.23

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Solution

The fourth proportional to 136,935.01, 188,937.92 and 79,540.23 is: 109,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,935.01 : 188,937.92 = 79,540.23 : x
  2. Step 2: Convert to fraction form
    136,935.01/188,937.92 = 79,540.23/x
  3. Step 3: Cross multiply
    136,935.01x = 188,937.92 × 79,540.23
  4. Step 4: Simplify right side
    136,935.01x = 15,028,165,214.82
  5. Step 5: Solve for x
    x = 15,028,165,214.82/136,935.01
  6. Step 6: Final answer
    x = 109,746.70

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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.