Home / 122,420.60-183,485.10-51,343.10

Finding the Fourth Proportional to 122,420.60, 183,485.10 and 51,343.10

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Solution

The fourth proportional to 122,420.60, 183,485.10 and 51,343.10 is: 76,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,420.60 : 183,485.10 = 51,343.10 : x
  2. Step 2: Convert to fraction form
    122,420.60/183,485.10 = 51,343.10/x
  3. Step 3: Cross multiply
    122,420.60x = 183,485.10 × 51,343.10
  4. Step 4: Simplify right side
    122,420.60x = 9,420,693,837.81
  5. Step 5: Solve for x
    x = 9,420,693,837.81/122,420.60
  6. Step 6: Final answer
    x = 76,953.50

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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.