Home / 122,928.16-184,383.60-70,172.32

Finding the Fourth Proportional to 122,928.16, 184,383.60 and 70,172.32

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Solution

The fourth proportional to 122,928.16, 184,383.60 and 70,172.32 is: 105,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,928.16 : 184,383.60 = 70,172.32 : x
  2. Step 2: Convert to fraction form
    122,928.16/184,383.60 = 70,172.32/x
  3. Step 3: Cross multiply
    122,928.16x = 184,383.60 × 70,172.32
  4. Step 4: Simplify right side
    122,928.16x = 12,938,624,981.95
  5. Step 5: Solve for x
    x = 12,938,624,981.95/122,928.16
  6. Step 6: Final answer
    x = 105,253.55

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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.