Home / 147,548.41-203,610.91-87,138.52

Finding the Fourth Proportional to 147,548.41, 203,610.91 and 87,138.52

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Solution

The fourth proportional to 147,548.41, 203,610.91 and 87,138.52 is: 120,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,548.41 : 203,610.91 = 87,138.52 : x
  2. Step 2: Convert to fraction form
    147,548.41/203,610.91 = 87,138.52/x
  3. Step 3: Cross multiply
    147,548.41x = 203,610.91 × 87,138.52
  4. Step 4: Simplify right side
    147,548.41x = 17,742,351,899.51
  5. Step 5: Solve for x
    x = 17,742,351,899.51/147,548.41
  6. Step 6: Final answer
    x = 120,247.67

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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.