Home / 115,943.40-173,684.70-66,637.80

Finding the Fourth Proportional to 115,943.40, 173,684.70 and 66,637.80

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Solution

The fourth proportional to 115,943.40, 173,684.70 and 66,637.80 is: 99,824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,943.40 : 173,684.70 = 66,637.80 : x
  2. Step 2: Convert to fraction form
    115,943.40/173,684.70 = 66,637.80/x
  3. Step 3: Cross multiply
    115,943.40x = 173,684.70 × 66,637.80
  4. Step 4: Simplify right side
    115,943.40x = 11,573,966,301.66
  5. Step 5: Solve for x
    x = 11,573,966,301.66/115,943.40
  6. Step 6: Final answer
    x = 99,824.28

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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.