Home / 105,246.54-145,242.32-57,502.85

Finding the Fourth Proportional to 105,246.54, 145,242.32 and 57,502.85

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Solution

The fourth proportional to 105,246.54, 145,242.32 and 57,502.85 is: 79,355.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,246.54 : 145,242.32 = 57,502.85 : x
  2. Step 2: Convert to fraction form
    105,246.54/145,242.32 = 57,502.85/x
  3. Step 3: Cross multiply
    105,246.54x = 145,242.32 × 57,502.85
  4. Step 4: Simplify right side
    105,246.54x = 8,351,846,326.89
  5. Step 5: Solve for x
    x = 8,351,846,326.89/105,246.54
  6. Step 6: Final answer
    x = 79,355.07

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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.