Home / 122,000.76-183,013.16-42,045.12

Finding the Fourth Proportional to 122,000.76, 183,013.16 and 42,045.12

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Solution

The fourth proportional to 122,000.76, 183,013.16 and 42,045.12 is: 63,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,000.76 : 183,013.16 = 42,045.12 : x
  2. Step 2: Convert to fraction form
    122,000.76/183,013.16 = 42,045.12/x
  3. Step 3: Cross multiply
    122,000.76x = 183,013.16 × 42,045.12
  4. Step 4: Simplify right side
    122,000.76x = 7,694,810,273.78
  5. Step 5: Solve for x
    x = 7,694,810,273.78/122,000.76
  6. Step 6: Final answer
    x = 63,071.82

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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.