Home / 122,928.90-184,359.60-77,882.64

Finding the Fourth Proportional to 122,928.90, 184,359.60 and 77,882.64

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Solution

The fourth proportional to 122,928.90, 184,359.60 and 77,882.64 is: 116,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,928.90 : 184,359.60 = 77,882.64 : x
  2. Step 2: Convert to fraction form
    122,928.90/184,359.60 = 77,882.64/x
  3. Step 3: Cross multiply
    122,928.90x = 184,359.60 × 77,882.64
  4. Step 4: Simplify right side
    122,928.90x = 14,358,412,357.34
  5. Step 5: Solve for x
    x = 14,358,412,357.34/122,928.90
  6. Step 6: Final answer
    x = 116,802.58

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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.