Home / 132,450.69-182,780.70-72,021.38

Finding the Fourth Proportional to 132,450.69, 182,780.70 and 72,021.38

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Solution

The fourth proportional to 132,450.69, 182,780.70 and 72,021.38 is: 99,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,450.69 : 182,780.70 = 72,021.38 : x
  2. Step 2: Convert to fraction form
    132,450.69/182,780.70 = 72,021.38/x
  3. Step 3: Cross multiply
    132,450.69x = 182,780.70 × 72,021.38
  4. Step 4: Simplify right side
    132,450.69x = 13,164,118,251.37
  5. Step 5: Solve for x
    x = 13,164,118,251.37/132,450.69
  6. Step 6: Final answer
    x = 99,388.82

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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.