Home / 101,899.50-151,919.06-99,309.88

Finding the Fourth Proportional to 101,899.50, 151,919.06 and 99,309.88

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Solution

The fourth proportional to 101,899.50, 151,919.06 and 99,309.88 is: 148,058.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,899.50 : 151,919.06 = 99,309.88 : x
  2. Step 2: Convert to fraction form
    101,899.50/151,919.06 = 99,309.88/x
  3. Step 3: Cross multiply
    101,899.50x = 151,919.06 × 99,309.88
  4. Step 4: Simplify right side
    101,899.50x = 15,087,063,870.28
  5. Step 5: Solve for x
    x = 15,087,063,870.28/101,899.50
  6. Step 6: Final answer
    x = 148,058.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.