Home / 115,929.40-173,663.70-66,623.80

Finding the Fourth Proportional to 115,929.40, 173,663.70 and 66,623.80

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Solution

The fourth proportional to 115,929.40, 173,663.70 and 66,623.80 is: 99,803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,929.40 : 173,663.70 = 66,623.80 : x
  2. Step 2: Convert to fraction form
    115,929.40/173,663.70 = 66,623.80/x
  3. Step 3: Cross multiply
    115,929.40x = 173,663.70 × 66,623.80
  4. Step 4: Simplify right side
    115,929.40x = 11,570,135,616.06
  5. Step 5: Solve for x
    x = 11,570,135,616.06/115,929.40
  6. Step 6: Final answer
    x = 99,803.29

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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.