Home / 100,322.70-149,599.83-99,423.33

Finding the Fourth Proportional to 100,322.70, 149,599.83 and 99,423.33

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Solution

The fourth proportional to 100,322.70, 149,599.83 and 99,423.33 is: 148,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,322.70 : 149,599.83 = 99,423.33 : x
  2. Step 2: Convert to fraction form
    100,322.70/149,599.83 = 99,423.33/x
  3. Step 3: Cross multiply
    100,322.70x = 149,599.83 × 99,423.33
  4. Step 4: Simplify right side
    100,322.70x = 14,873,713,266.03
  5. Step 5: Solve for x
    x = 14,873,713,266.03/100,322.70
  6. Step 6: Final answer
    x = 148,258.70

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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.