Home / 190,984.40-286,287.60-84,426.20

Finding the Fourth Proportional to 190,984.40, 286,287.60 and 84,426.20

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Solution

The fourth proportional to 190,984.40, 286,287.60 and 84,426.20 is: 126,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,984.40 : 286,287.60 = 84,426.20 : x
  2. Step 2: Convert to fraction form
    190,984.40/286,287.60 = 84,426.20/x
  3. Step 3: Cross multiply
    190,984.40x = 286,287.60 × 84,426.20
  4. Step 4: Simplify right side
    190,984.40x = 24,170,174,175.12
  5. Step 5: Solve for x
    x = 24,170,174,175.12/190,984.40
  6. Step 6: Final answer
    x = 126,555.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.