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Finding the Fourth Proportional to 162,049.58, 223,628.01 and 90,428.84

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Solution

The fourth proportional to 162,049.58, 223,628.01 and 90,428.84 is: 124,791.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,049.58 : 223,628.01 = 90,428.84 : x
  2. Step 2: Convert to fraction form
    162,049.58/223,628.01 = 90,428.84/x
  3. Step 3: Cross multiply
    162,049.58x = 223,628.01 × 90,428.84
  4. Step 4: Simplify right side
    162,049.58x = 20,222,421,535.81
  5. Step 5: Solve for x
    x = 20,222,421,535.81/162,049.58
  6. Step 6: Final answer
    x = 124,791.57

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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.