Home / 190,944.20-286,308.30-72,619.40

Finding the Fourth Proportional to 190,944.20, 286,308.30 and 72,619.40

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Solution

The fourth proportional to 190,944.20, 286,308.30 and 72,619.40 is: 108,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,944.20 : 286,308.30 = 72,619.40 : x
  2. Step 2: Convert to fraction form
    190,944.20/286,308.30 = 72,619.40/x
  3. Step 3: Cross multiply
    190,944.20x = 286,308.30 × 72,619.40
  4. Step 4: Simplify right side
    190,944.20x = 20,791,536,961.02
  5. Step 5: Solve for x
    x = 20,791,536,961.02/190,944.20
  6. Step 6: Final answer
    x = 108,888.03

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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.