Home / 143,649.36-215,180.28-117,090

Finding the Fourth Proportional to 143,649.36, 215,180.28 and 117,090

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Solution

The fourth proportional to 143,649.36, 215,180.28 and 117,090 is: 175,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,649.36 : 215,180.28 = 117,090 : x
  2. Step 2: Convert to fraction form
    143,649.36/215,180.28 = 117,090/x
  3. Step 3: Cross multiply
    143,649.36x = 215,180.28 × 117,090
  4. Step 4: Simplify right side
    143,649.36x = 25,195,458,985.20
  5. Step 5: Solve for x
    x = 25,195,458,985.20/143,649.36
  6. Step 6: Final answer
    x = 175,395.55

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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.