Home / 154,460.91-213,145.74-86,466.39

Finding the Fourth Proportional to 154,460.91, 213,145.74 and 86,466.39

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Solution

The fourth proportional to 154,460.91, 213,145.74 and 86,466.39 is: 119,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,460.91 : 213,145.74 = 86,466.39 : x
  2. Step 2: Convert to fraction form
    154,460.91/213,145.74 = 86,466.39/x
  3. Step 3: Cross multiply
    154,460.91x = 213,145.74 × 86,466.39
  4. Step 4: Simplify right side
    154,460.91x = 18,429,942,681.68
  5. Step 5: Solve for x
    x = 18,429,942,681.68/154,460.91
  6. Step 6: Final answer
    x = 119,317.84

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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.