Home / 190,125.76-285,187.87-47,971.37

Finding the Fourth Proportional to 190,125.76, 285,187.87 and 47,971.37

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Solution

The fourth proportional to 190,125.76, 285,187.87 and 47,971.37 is: 71,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,125.76 : 285,187.87 = 47,971.37 : x
  2. Step 2: Convert to fraction form
    190,125.76/285,187.87 = 47,971.37/x
  3. Step 3: Cross multiply
    190,125.76x = 285,187.87 × 47,971.37
  4. Step 4: Simplify right side
    190,125.76x = 13,680,852,831.28
  5. Step 5: Solve for x
    x = 13,680,852,831.28/190,125.76
  6. Step 6: Final answer
    x = 71,956.86

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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.