Home / 105,535.90-158,267.40-30,635.74

Finding the Fourth Proportional to 105,535.90, 158,267.40 and 30,635.74

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Solution

The fourth proportional to 105,535.90, 158,267.40 and 30,635.74 is: 45,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,535.90 : 158,267.40 = 30,635.74 : x
  2. Step 2: Convert to fraction form
    105,535.90/158,267.40 = 30,635.74/x
  3. Step 3: Cross multiply
    105,535.90x = 158,267.40 × 30,635.74
  4. Step 4: Simplify right side
    105,535.90x = 4,848,638,916.88
  5. Step 5: Solve for x
    x = 4,848,638,916.88/105,535.90
  6. Step 6: Final answer
    x = 45,943.03

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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.