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Finding the Fourth Proportional to 162,071.03, 223,648.92 and 90,455.67

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Solution

The fourth proportional to 162,071.03, 223,648.92 and 90,455.67 is: 124,823.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,071.03 : 223,648.92 = 90,455.67 : x
  2. Step 2: Convert to fraction form
    162,071.03/223,648.92 = 90,455.67/x
  3. Step 3: Cross multiply
    162,071.03x = 223,648.92 × 90,455.67
  4. Step 4: Simplify right side
    162,071.03x = 20,230,312,903.38
  5. Step 5: Solve for x
    x = 20,230,312,903.38/162,071.03
  6. Step 6: Final answer
    x = 124,823.74

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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.