Home / 236,861.23-326,869.37-129,431.28

Finding the Fourth Proportional to 236,861.23, 326,869.37 and 129,431.28

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Solution

The fourth proportional to 236,861.23, 326,869.37 and 129,431.28 is: 178,615.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,861.23 : 326,869.37 = 129,431.28 : x
  2. Step 2: Convert to fraction form
    236,861.23/326,869.37 = 129,431.28/x
  3. Step 3: Cross multiply
    236,861.23x = 326,869.37 × 129,431.28
  4. Step 4: Simplify right side
    236,861.23x = 42,307,119,078.98
  5. Step 5: Solve for x
    x = 42,307,119,078.98/236,861.23
  6. Step 6: Final answer
    x = 178,615.64

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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.