Home / 236,428.70-326,272.66-129,000.98

Finding the Fourth Proportional to 236,428.70, 326,272.66 and 129,000.98

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Solution

The fourth proportional to 236,428.70, 326,272.66 and 129,000.98 is: 178,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,428.70 : 326,272.66 = 129,000.98 : x
  2. Step 2: Convert to fraction form
    236,428.70/326,272.66 = 129,000.98/x
  3. Step 3: Cross multiply
    236,428.70x = 326,272.66 × 129,000.98
  4. Step 4: Simplify right side
    236,428.70x = 42,089,493,380.39
  5. Step 5: Solve for x
    x = 42,089,493,380.39/236,428.70
  6. Step 6: Final answer
    x = 178,021.93

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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.