Home / 190,928.20-286,284.30-72,603.40

Finding the Fourth Proportional to 190,928.20, 286,284.30 and 72,603.40

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Solution

The fourth proportional to 190,928.20, 286,284.30 and 72,603.40 is: 108,864.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,928.20 : 286,284.30 = 72,603.40 : x
  2. Step 2: Convert to fraction form
    190,928.20/286,284.30 = 72,603.40/x
  3. Step 3: Cross multiply
    190,928.20x = 286,284.30 × 72,603.40
  4. Step 4: Simplify right side
    190,928.20x = 20,785,213,546.62
  5. Step 5: Solve for x
    x = 20,785,213,546.62/190,928.20
  6. Step 6: Final answer
    x = 108,864.03

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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.