Home / 103,934.94-143,445.09-75,349.23

Finding the Fourth Proportional to 103,934.94, 143,445.09 and 75,349.23

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Solution

The fourth proportional to 103,934.94, 143,445.09 and 75,349.23 is: 103,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,934.94 : 143,445.09 = 75,349.23 : x
  2. Step 2: Convert to fraction form
    103,934.94/143,445.09 = 75,349.23/x
  3. Step 3: Cross multiply
    103,934.94x = 143,445.09 × 75,349.23
  4. Step 4: Simplify right side
    103,934.94x = 10,808,477,078.78
  5. Step 5: Solve for x
    x = 10,808,477,078.78/103,934.94
  6. Step 6: Final answer
    x = 103,992.72

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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.