Home / 122,021.10-183,061.65-42,060.30

Finding the Fourth Proportional to 122,021.10, 183,061.65 and 42,060.30

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Solution

The fourth proportional to 122,021.10, 183,061.65 and 42,060.30 is: 63,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,021.10 : 183,061.65 = 42,060.30 : x
  2. Step 2: Convert to fraction form
    122,021.10/183,061.65 = 42,060.30/x
  3. Step 3: Cross multiply
    122,021.10x = 183,061.65 × 42,060.30
  4. Step 4: Simplify right side
    122,021.10x = 7,699,627,917.50
  5. Step 5: Solve for x
    x = 7,699,627,917.50/122,021.10
  6. Step 6: Final answer
    x = 63,100.79

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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.