Home / 190,022.20-262,233.74-103,988.64

Finding the Fourth Proportional to 190,022.20, 262,233.74 and 103,988.64

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Solution

The fourth proportional to 190,022.20, 262,233.74 and 103,988.64 is: 143,506.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,022.20 : 262,233.74 = 103,988.64 : x
  2. Step 2: Convert to fraction form
    190,022.20/262,233.74 = 103,988.64/x
  3. Step 3: Cross multiply
    190,022.20x = 262,233.74 × 103,988.64
  4. Step 4: Simplify right side
    190,022.20x = 27,269,329,984.71
  5. Step 5: Solve for x
    x = 27,269,329,984.71/190,022.20
  6. Step 6: Final answer
    x = 143,506.02

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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.