Home / 105,260.91-145,260.57-57,514.38

Finding the Fourth Proportional to 105,260.91, 145,260.57 and 57,514.38

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Solution

The fourth proportional to 105,260.91, 145,260.57 and 57,514.38 is: 79,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,260.91 : 145,260.57 = 57,514.38 : x
  2. Step 2: Convert to fraction form
    105,260.91/145,260.57 = 57,514.38/x
  3. Step 3: Cross multiply
    105,260.91x = 145,260.57 × 57,514.38
  4. Step 4: Simplify right side
    105,260.91x = 8,354,571,622.00
  5. Step 5: Solve for x
    x = 8,354,571,622.00/105,260.91
  6. Step 6: Final answer
    x = 79,370.13

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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.