Home / 190,874.57-286,221.92-70,848.36

Finding the Fourth Proportional to 190,874.57, 286,221.92 and 70,848.36

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Solution

The fourth proportional to 190,874.57, 286,221.92 and 70,848.36 is: 106,239.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,874.57 : 286,221.92 = 70,848.36 : x
  2. Step 2: Convert to fraction form
    190,874.57/286,221.92 = 70,848.36/x
  3. Step 3: Cross multiply
    190,874.57x = 286,221.92 × 70,848.36
  4. Step 4: Simplify right side
    190,874.57x = 20,278,353,273.81
  5. Step 5: Solve for x
    x = 20,278,353,273.81/190,874.57
  6. Step 6: Final answer
    x = 106,239.16

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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.