Home / 149,027.16-205,661.34-81,048.36

Finding the Fourth Proportional to 149,027.16, 205,661.34 and 81,048.36

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Solution

The fourth proportional to 149,027.16, 205,661.34 and 81,048.36 is: 111,848.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,027.16 : 205,661.34 = 81,048.36 : x
  2. Step 2: Convert to fraction form
    149,027.16/205,661.34 = 81,048.36/x
  3. Step 3: Cross multiply
    149,027.16x = 205,661.34 × 81,048.36
  4. Step 4: Simplify right side
    149,027.16x = 16,668,514,322.40
  5. Step 5: Solve for x
    x = 16,668,514,322.40/149,027.16
  6. Step 6: Final answer
    x = 111,848.84

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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.