Home / 106,649.36-147,179.40-58,905.80

Finding the Fourth Proportional to 106,649.36, 147,179.40 and 58,905.80

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Solution

The fourth proportional to 106,649.36, 147,179.40 and 58,905.80 is: 81,291.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,649.36 : 147,179.40 = 58,905.80 : x
  2. Step 2: Convert to fraction form
    106,649.36/147,179.40 = 58,905.80/x
  3. Step 3: Cross multiply
    106,649.36x = 147,179.40 × 58,905.80
  4. Step 4: Simplify right side
    106,649.36x = 8,669,720,300.52
  5. Step 5: Solve for x
    x = 8,669,720,300.52/106,649.36
  6. Step 6: Final answer
    x = 81,291.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.