Home / 236,459.39-326,321.80-129,035.30

Finding the Fourth Proportional to 236,459.39, 326,321.80 and 129,035.30

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Solution

The fourth proportional to 236,459.39, 326,321.80 and 129,035.30 is: 178,072.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,459.39 : 326,321.80 = 129,035.30 : x
  2. Step 2: Convert to fraction form
    236,459.39/326,321.80 = 129,035.30/x
  3. Step 3: Cross multiply
    236,459.39x = 326,321.80 × 129,035.30
  4. Step 4: Simplify right side
    236,459.39x = 42,107,029,405.34
  5. Step 5: Solve for x
    x = 42,107,029,405.34/236,459.39
  6. Step 6: Final answer
    x = 178,072.99

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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.