Home / 103,173.51-142,376.49-62,872.57

Finding the Fourth Proportional to 103,173.51, 142,376.49 and 62,872.57

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Solution

The fourth proportional to 103,173.51, 142,376.49 and 62,872.57 is: 86,762.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,173.51 : 142,376.49 = 62,872.57 : x
  2. Step 2: Convert to fraction form
    103,173.51/142,376.49 = 62,872.57/x
  3. Step 3: Cross multiply
    103,173.51x = 142,376.49 × 62,872.57
  4. Step 4: Simplify right side
    103,173.51x = 8,951,575,455.41
  5. Step 5: Solve for x
    x = 8,951,575,455.41/103,173.51
  6. Step 6: Final answer
    x = 86,762.34

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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.