Home / 165,307.22-228,148.90-100,813.87

Finding the Fourth Proportional to 165,307.22, 228,148.90 and 100,813.87

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Solution

The fourth proportional to 165,307.22, 228,148.90 and 100,813.87 is: 139,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,307.22 : 228,148.90 = 100,813.87 : x
  2. Step 2: Convert to fraction form
    165,307.22/228,148.90 = 100,813.87/x
  3. Step 3: Cross multiply
    165,307.22x = 228,148.90 × 100,813.87
  4. Step 4: Simplify right side
    165,307.22x = 23,000,573,041.17
  5. Step 5: Solve for x
    x = 23,000,573,041.17/165,307.22
  6. Step 6: Final answer
    x = 139,138.35

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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.