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Finding the Fourth Proportional to 147,021.75, 202,890.02 and 79,953.75

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Solution

The fourth proportional to 147,021.75, 202,890.02 and 79,953.75 is: 110,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,021.75 : 202,890.02 = 79,953.75 : x
  2. Step 2: Convert to fraction form
    147,021.75/202,890.02 = 79,953.75/x
  3. Step 3: Cross multiply
    147,021.75x = 202,890.02 × 79,953.75
  4. Step 4: Simplify right side
    147,021.75x = 16,221,817,536.81
  5. Step 5: Solve for x
    x = 16,221,817,536.81/147,021.75
  6. Step 6: Final answer
    x = 110,336.18

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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.