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Finding the Fourth Proportional to 129,466.69, 178,765.37 and 101,252.77

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Solution

The fourth proportional to 129,466.69, 178,765.37 and 101,252.77 is: 139,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,466.69 : 178,765.37 = 101,252.77 : x
  2. Step 2: Convert to fraction form
    129,466.69/178,765.37 = 101,252.77/x
  3. Step 3: Cross multiply
    129,466.69x = 178,765.37 × 101,252.77
  4. Step 4: Simplify right side
    129,466.69x = 18,100,488,892.57
  5. Step 5: Solve for x
    x = 18,100,488,892.57/129,466.69
  6. Step 6: Final answer
    x = 139,808.08

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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.