Home / 190,667.12-286,076.01-72,369.86

Finding the Fourth Proportional to 190,667.12, 286,076.01 and 72,369.86

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Solution

The fourth proportional to 190,667.12, 286,076.01 and 72,369.86 is: 108,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,667.12 : 286,076.01 = 72,369.86 : x
  2. Step 2: Convert to fraction form
    190,667.12/286,076.01 = 72,369.86/x
  3. Step 3: Cross multiply
    190,667.12x = 286,076.01 × 72,369.86
  4. Step 4: Simplify right side
    190,667.12x = 20,703,280,793.06
  5. Step 5: Solve for x
    x = 20,703,280,793.06/190,667.12
  6. Step 6: Final answer
    x = 108,583.38

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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.