Home / 122,495.20-183,742.80-52,381.60

Finding the Fourth Proportional to 122,495.20, 183,742.80 and 52,381.60

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Solution

The fourth proportional to 122,495.20, 183,742.80 and 52,381.60 is: 78,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,495.20 : 183,742.80 = 52,381.60 : x
  2. Step 2: Convert to fraction form
    122,495.20/183,742.80 = 52,381.60/x
  3. Step 3: Cross multiply
    122,495.20x = 183,742.80 × 52,381.60
  4. Step 4: Simplify right side
    122,495.20x = 9,624,741,852.48
  5. Step 5: Solve for x
    x = 9,624,741,852.48/122,495.20
  6. Step 6: Final answer
    x = 78,572.40

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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.