Home / 122,435.40-183,458.70-102,606.60

Finding the Fourth Proportional to 122,435.40, 183,458.70 and 102,606.60

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Solution

The fourth proportional to 122,435.40, 183,458.70 and 102,606.60 is: 153,746.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,435.40 : 183,458.70 = 102,606.60 : x
  2. Step 2: Convert to fraction form
    122,435.40/183,458.70 = 102,606.60/x
  3. Step 3: Cross multiply
    122,435.40x = 183,458.70 × 102,606.60
  4. Step 4: Simplify right side
    122,435.40x = 18,824,073,447.42
  5. Step 5: Solve for x
    x = 18,824,073,447.42/122,435.40
  6. Step 6: Final answer
    x = 153,746.98

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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.