Home / 106,391.40-159,716.70-105,613.80

Finding the Fourth Proportional to 106,391.40, 159,716.70 and 105,613.80

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Solution

The fourth proportional to 106,391.40, 159,716.70 and 105,613.80 is: 158,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,391.40 : 159,716.70 = 105,613.80 : x
  2. Step 2: Convert to fraction form
    106,391.40/159,716.70 = 105,613.80/x
  3. Step 3: Cross multiply
    106,391.40x = 159,716.70 × 105,613.80
  4. Step 4: Simplify right side
    106,391.40x = 16,868,287,610.46
  5. Step 5: Solve for x
    x = 16,868,287,610.46/106,391.40
  6. Step 6: Final answer
    x = 158,549.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.