Home / 144,313.07-199,023.08-90,603.09

Finding the Fourth Proportional to 144,313.07, 199,023.08 and 90,603.09

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Solution

The fourth proportional to 144,313.07, 199,023.08 and 90,603.09 is: 124,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,313.07 : 199,023.08 = 90,603.09 : x
  2. Step 2: Convert to fraction form
    144,313.07/199,023.08 = 90,603.09/x
  3. Step 3: Cross multiply
    144,313.07x = 199,023.08 × 90,603.09
  4. Step 4: Simplify right side
    144,313.07x = 18,032,105,576.30
  5. Step 5: Solve for x
    x = 18,032,105,576.30/144,313.07
  6. Step 6: Final answer
    x = 124,951.30

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1.5x scale

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.