Home / 105,101.24-145,042.79-57,357.65

Finding the Fourth Proportional to 105,101.24, 145,042.79 and 57,357.65

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Solution

The fourth proportional to 105,101.24, 145,042.79 and 57,357.65 is: 79,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,101.24 : 145,042.79 = 57,357.65 : x
  2. Step 2: Convert to fraction form
    105,101.24/145,042.79 = 57,357.65/x
  3. Step 3: Cross multiply
    105,101.24x = 145,042.79 × 57,357.65
  4. Step 4: Simplify right side
    105,101.24x = 8,319,313,659.66
  5. Step 5: Solve for x
    x = 8,319,313,659.66/105,101.24
  6. Step 6: Final answer
    x = 79,155.24

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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.