Home / 109,811.51-151,556.13-69,529.01

Finding the Fourth Proportional to 109,811.51, 151,556.13 and 69,529.01

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Solution

The fourth proportional to 109,811.51, 151,556.13 and 69,529.01 is: 95,960.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,811.51 : 151,556.13 = 69,529.01 : x
  2. Step 2: Convert to fraction form
    109,811.51/151,556.13 = 69,529.01/x
  3. Step 3: Cross multiply
    109,811.51x = 151,556.13 × 69,529.01
  4. Step 4: Simplify right side
    109,811.51x = 10,537,546,920.55
  5. Step 5: Solve for x
    x = 10,537,546,920.55/109,811.51
  6. Step 6: Final answer
    x = 95,960.32

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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.