Home / 314,828.14-472,103.24-90,137.58

Finding the Fourth Proportional to 314,828.14, 472,103.24 and 90,137.58

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Solution

The fourth proportional to 314,828.14, 472,103.24 and 90,137.58 is: 135,166.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,828.14 : 472,103.24 = 90,137.58 : x
  2. Step 2: Convert to fraction form
    314,828.14/472,103.24 = 90,137.58/x
  3. Step 3: Cross multiply
    314,828.14x = 472,103.24 × 90,137.58
  4. Step 4: Simplify right side
    314,828.14x = 42,554,243,563.76
  5. Step 5: Solve for x
    x = 42,554,243,563.76/314,828.14
  6. Step 6: Final answer
    x = 135,166.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.