Home / 122,828.72-183,947.81-70,078.28

Finding the Fourth Proportional to 122,828.72, 183,947.81 and 70,078.28

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Solution

The fourth proportional to 122,828.72, 183,947.81 and 70,078.28 is: 104,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,828.72 : 183,947.81 = 70,078.28 : x
  2. Step 2: Convert to fraction form
    122,828.72/183,947.81 = 70,078.28/x
  3. Step 3: Cross multiply
    122,828.72x = 183,947.81 × 70,078.28
  4. Step 4: Simplify right side
    122,828.72x = 12,890,745,390.02
  5. Step 5: Solve for x
    x = 12,890,745,390.02/122,828.72
  6. Step 6: Final answer
    x = 104,948.96

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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.