Home / 126,237.07-189,355.04-51,356.60

Finding the Fourth Proportional to 126,237.07, 189,355.04 and 51,356.60

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Solution

The fourth proportional to 126,237.07, 189,355.04 and 51,356.60 is: 77,034.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,237.07 : 189,355.04 = 51,356.60 : x
  2. Step 2: Convert to fraction form
    126,237.07/189,355.04 = 51,356.60/x
  3. Step 3: Cross multiply
    126,237.07x = 189,355.04 × 51,356.60
  4. Step 4: Simplify right side
    126,237.07x = 9,724,631,047.26
  5. Step 5: Solve for x
    x = 9,724,631,047.26/126,237.07
  6. Step 6: Final answer
    x = 77,034.67

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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.