Home / 149,026.16-205,659.96-81,047.36

Finding the Fourth Proportional to 149,026.16, 205,659.96 and 81,047.36

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Solution

The fourth proportional to 149,026.16, 205,659.96 and 81,047.36 is: 111,847.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,026.16 : 205,659.96 = 81,047.36 : x
  2. Step 2: Convert to fraction form
    149,026.16/205,659.96 = 81,047.36/x
  3. Step 3: Cross multiply
    149,026.16x = 205,659.96 × 81,047.36
  4. Step 4: Simplify right side
    149,026.16x = 16,668,196,815.71
  5. Step 5: Solve for x
    x = 16,668,196,815.71/149,026.16
  6. Step 6: Final answer
    x = 111,847.46

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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.