Home / 103,141.75-142,335.62-58,429.75

Finding the Fourth Proportional to 103,141.75, 142,335.62 and 58,429.75

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Solution

The fourth proportional to 103,141.75, 142,335.62 and 58,429.75 is: 80,633.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,141.75 : 142,335.62 = 58,429.75 : x
  2. Step 2: Convert to fraction form
    103,141.75/142,335.62 = 58,429.75/x
  3. Step 3: Cross multiply
    103,141.75x = 142,335.62 × 58,429.75
  4. Step 4: Simplify right side
    103,141.75x = 8,316,634,692.70
  5. Step 5: Solve for x
    x = 8,316,634,692.70/103,141.75
  6. Step 6: Final answer
    x = 80,633.06

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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.