Home / 143,668.23-198,253.76-105,587.70

Finding the Fourth Proportional to 143,668.23, 198,253.76 and 105,587.70

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Solution

The fourth proportional to 143,668.23, 198,253.76 and 105,587.70 is: 145,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,668.23 : 198,253.76 = 105,587.70 : x
  2. Step 2: Convert to fraction form
    143,668.23/198,253.76 = 105,587.70/x
  3. Step 3: Cross multiply
    143,668.23x = 198,253.76 × 105,587.70
  4. Step 4: Simplify right side
    143,668.23x = 20,933,158,006.81
  5. Step 5: Solve for x
    x = 20,933,158,006.81/143,668.23
  6. Step 6: Final answer
    x = 145,704.85

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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.