Home / 190,987.40-286,292.10-84,429.20

Finding the Fourth Proportional to 190,987.40, 286,292.10 and 84,429.20

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Solution

The fourth proportional to 190,987.40, 286,292.10 and 84,429.20 is: 126,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,987.40 : 286,292.10 = 84,429.20 : x
  2. Step 2: Convert to fraction form
    190,987.40/286,292.10 = 84,429.20/x
  3. Step 3: Cross multiply
    190,987.40x = 286,292.10 × 84,429.20
  4. Step 4: Simplify right side
    190,987.40x = 24,171,412,969.32
  5. Step 5: Solve for x
    x = 24,171,412,969.32/190,987.40
  6. Step 6: Final answer
    x = 126,560.25

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1.5x scale

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.