Home / 122,046.72-183,088.80-51,907.20

Finding the Fourth Proportional to 122,046.72, 183,088.80 and 51,907.20

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Solution

The fourth proportional to 122,046.72, 183,088.80 and 51,907.20 is: 77,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,046.72 : 183,088.80 = 51,907.20 : x
  2. Step 2: Convert to fraction form
    122,046.72/183,088.80 = 51,907.20/x
  3. Step 3: Cross multiply
    122,046.72x = 183,088.80 × 51,907.20
  4. Step 4: Simplify right side
    122,046.72x = 9,503,626,959.36
  5. Step 5: Solve for x
    x = 9,503,626,959.36/122,046.72
  6. Step 6: Final answer
    x = 77,868.76

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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.