Home / 122,205.60-183,308.40-118,123.20

Finding the Fourth Proportional to 122,205.60, 183,308.40 and 118,123.20

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Solution

The fourth proportional to 122,205.60, 183,308.40 and 118,123.20 is: 177,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,205.60 : 183,308.40 = 118,123.20 : x
  2. Step 2: Convert to fraction form
    122,205.60/183,308.40 = 118,123.20/x
  3. Step 3: Cross multiply
    122,205.60x = 183,308.40 × 118,123.20
  4. Step 4: Simplify right side
    122,205.60x = 21,652,974,794.88
  5. Step 5: Solve for x
    x = 21,652,974,794.88/122,205.60
  6. Step 6: Final answer
    x = 177,184.80

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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.