Home / 103,558.84-142,937.67-61,131.04

Finding the Fourth Proportional to 103,558.84, 142,937.67 and 61,131.04

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Solution

The fourth proportional to 103,558.84, 142,937.67 and 61,131.04 is: 84,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,558.84 : 142,937.67 = 61,131.04 : x
  2. Step 2: Convert to fraction form
    103,558.84/142,937.67 = 61,131.04/x
  3. Step 3: Cross multiply
    103,558.84x = 142,937.67 × 61,131.04
  4. Step 4: Simplify right side
    103,558.84x = 8,737,928,422.28
  5. Step 5: Solve for x
    x = 8,737,928,422.28/103,558.84
  6. Step 6: Final answer
    x = 84,376.46

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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.