Home / 142,750.06-197,087.52-91,785.68

Finding the Fourth Proportional to 142,750.06, 197,087.52 and 91,785.68

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Solution

The fourth proportional to 142,750.06, 197,087.52 and 91,785.68 is: 126,723.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,750.06 : 197,087.52 = 91,785.68 : x
  2. Step 2: Convert to fraction form
    142,750.06/197,087.52 = 91,785.68/x
  3. Step 3: Cross multiply
    142,750.06x = 197,087.52 × 91,785.68
  4. Step 4: Simplify right side
    142,750.06x = 18,089,812,042.71
  5. Step 5: Solve for x
    x = 18,089,812,042.71/142,750.06
  6. Step 6: Final answer
    x = 126,723.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.