Home / 314,813.18-472,080.44-90,122.42

Finding the Fourth Proportional to 314,813.18, 472,080.44 and 90,122.42

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Solution

The fourth proportional to 314,813.18, 472,080.44 and 90,122.42 is: 135,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,813.18 : 472,080.44 = 90,122.42 : x
  2. Step 2: Convert to fraction form
    314,813.18/472,080.44 = 90,122.42/x
  3. Step 3: Cross multiply
    314,813.18x = 472,080.44 × 90,122.42
  4. Step 4: Simplify right side
    314,813.18x = 42,545,028,876.45
  5. Step 5: Solve for x
    x = 42,545,028,876.45/314,813.18
  6. Step 6: Final answer
    x = 135,143.74

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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.