Home / 105,240.63-145,234.92-62,823.78

Finding the Fourth Proportional to 105,240.63, 145,234.92 and 62,823.78

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Solution

The fourth proportional to 105,240.63, 145,234.92 and 62,823.78 is: 86,698.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,240.63 : 145,234.92 = 62,823.78 : x
  2. Step 2: Convert to fraction form
    105,240.63/145,234.92 = 62,823.78/x
  3. Step 3: Cross multiply
    105,240.63x = 145,234.92 × 62,823.78
  4. Step 4: Simplify right side
    105,240.63x = 9,124,206,662.40
  5. Step 5: Solve for x
    x = 9,124,206,662.40/105,240.63
  6. Step 6: Final answer
    x = 86,698.52

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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.