Home / 215,485.70-297,370.25-124,894.21

Finding the Fourth Proportional to 215,485.70, 297,370.25 and 124,894.21

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Solution

The fourth proportional to 215,485.70, 297,370.25 and 124,894.21 is: 172,354.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,485.70 : 297,370.25 = 124,894.21 : x
  2. Step 2: Convert to fraction form
    215,485.70/297,370.25 = 124,894.21/x
  3. Step 3: Cross multiply
    215,485.70x = 297,370.25 × 124,894.21
  4. Step 4: Simplify right side
    215,485.70x = 37,139,822,945.63
  5. Step 5: Solve for x
    x = 37,139,822,945.63/215,485.70
  6. Step 6: Final answer
    x = 172,354.00

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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.