Home / 189,438.05-261,423.97-104,554.50

Finding the Fourth Proportional to 189,438.05, 261,423.97 and 104,554.50

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Solution

The fourth proportional to 189,438.05, 261,423.97 and 104,554.50 is: 144,284.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,438.05 : 261,423.97 = 104,554.50 : x
  2. Step 2: Convert to fraction form
    189,438.05/261,423.97 = 104,554.50/x
  3. Step 3: Cross multiply
    189,438.05x = 261,423.97 × 104,554.50
  4. Step 4: Simplify right side
    189,438.05x = 27,333,051,948.59
  5. Step 5: Solve for x
    x = 27,333,051,948.59/189,438.05
  6. Step 6: Final answer
    x = 144,284.91

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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.