Home / 122,379.11-183,623.75-66,153.39

Finding the Fourth Proportional to 122,379.11, 183,623.75 and 66,153.39

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Solution

The fourth proportional to 122,379.11, 183,623.75 and 66,153.39 is: 99,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,379.11 : 183,623.75 = 66,153.39 : x
  2. Step 2: Convert to fraction form
    122,379.11/183,623.75 = 66,153.39/x
  3. Step 3: Cross multiply
    122,379.11x = 183,623.75 × 66,153.39
  4. Step 4: Simplify right side
    122,379.11x = 12,147,333,547.01
  5. Step 5: Solve for x
    x = 12,147,333,547.01/122,379.11
  6. Step 6: Final answer
    x = 99,259.86

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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.