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Finding the Fourth Proportional to 108,199.38, 162,382.76 and 70,749.30

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Solution

The fourth proportional to 108,199.38, 162,382.76 and 70,749.30 is: 106,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,199.38 : 162,382.76 = 70,749.30 : x
  2. Step 2: Convert to fraction form
    108,199.38/162,382.76 = 70,749.30/x
  3. Step 3: Cross multiply
    108,199.38x = 162,382.76 × 70,749.30
  4. Step 4: Simplify right side
    108,199.38x = 11,488,466,602.07
  5. Step 5: Solve for x
    x = 11,488,466,602.07/108,199.38
  6. Step 6: Final answer
    x = 106,178.67

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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.