Home / 189,830.50-261,971.57-104,953.03

Finding the Fourth Proportional to 189,830.50, 261,971.57 and 104,953.03

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Solution

The fourth proportional to 189,830.50, 261,971.57 and 104,953.03 is: 144,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,830.50 : 261,971.57 = 104,953.03 : x
  2. Step 2: Convert to fraction form
    189,830.50/261,971.57 = 104,953.03/x
  3. Step 3: Cross multiply
    189,830.50x = 261,971.57 × 104,953.03
  4. Step 4: Simplify right side
    189,830.50x = 27,494,710,045.36
  5. Step 5: Solve for x
    x = 27,494,710,045.36/189,830.50
  6. Step 6: Final answer
    x = 144,838.21

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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.