Home / 314,829.14-472,104.74-90,138.58

Finding the Fourth Proportional to 314,829.14, 472,104.74 and 90,138.58

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Solution

The fourth proportional to 314,829.14, 472,104.74 and 90,138.58 is: 135,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,829.14 : 472,104.74 = 90,138.58 : x
  2. Step 2: Convert to fraction form
    314,829.14/472,104.74 = 90,138.58/x
  3. Step 3: Cross multiply
    314,829.14x = 472,104.74 × 90,138.58
  4. Step 4: Simplify right side
    314,829.14x = 42,554,850,874.87
  5. Step 5: Solve for x
    x = 42,554,850,874.87/314,829.14
  6. Step 6: Final answer
    x = 135,168.08

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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.