Home / 251,938.70-377,905.71-102,143.39

Finding the Fourth Proportional to 251,938.70, 377,905.71 and 102,143.39

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Solution

The fourth proportional to 251,938.70, 377,905.71 and 102,143.39 is: 153,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,938.70 : 377,905.71 = 102,143.39 : x
  2. Step 2: Convert to fraction form
    251,938.70/377,905.71 = 102,143.39/x
  3. Step 3: Cross multiply
    251,938.70x = 377,905.71 × 102,143.39
  4. Step 4: Simplify right side
    251,938.70x = 38,600,569,588.85
  5. Step 5: Solve for x
    x = 38,600,569,588.85/251,938.70
  6. Step 6: Final answer
    x = 153,214.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.