Home / 103,043.70-142,197.51-57,725.82

Finding the Fourth Proportional to 103,043.70, 142,197.51 and 57,725.82

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Solution

The fourth proportional to 103,043.70, 142,197.51 and 57,725.82 is: 79,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,043.70 : 142,197.51 = 57,725.82 : x
  2. Step 2: Convert to fraction form
    103,043.70/142,197.51 = 57,725.82/x
  3. Step 3: Cross multiply
    103,043.70x = 142,197.51 × 57,725.82
  4. Step 4: Simplify right side
    103,043.70x = 8,208,467,866.71
  5. Step 5: Solve for x
    x = 8,208,467,866.71/103,043.70
  6. Step 6: Final answer
    x = 79,660.07

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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.