Home / 154,746.36-213,550.62-87,678.36

Finding the Fourth Proportional to 154,746.36, 213,550.62 and 87,678.36

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Solution

The fourth proportional to 154,746.36, 213,550.62 and 87,678.36 is: 120,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,746.36 : 213,550.62 = 87,678.36 : x
  2. Step 2: Convert to fraction form
    154,746.36/213,550.62 = 87,678.36/x
  3. Step 3: Cross multiply
    154,746.36x = 213,550.62 × 87,678.36
  4. Step 4: Simplify right side
    154,746.36x = 18,723,768,138.58
  5. Step 5: Solve for x
    x = 18,723,768,138.58/154,746.36
  6. Step 6: Final answer
    x = 120,996.50

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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.