Home / 118,964.90-164,171.80-65,250.36

Finding the Fourth Proportional to 118,964.90, 164,171.80 and 65,250.36

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Solution

The fourth proportional to 118,964.90, 164,171.80 and 65,250.36 is: 90,045.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,964.90 : 164,171.80 = 65,250.36 : x
  2. Step 2: Convert to fraction form
    118,964.90/164,171.80 = 65,250.36/x
  3. Step 3: Cross multiply
    118,964.90x = 164,171.80 × 65,250.36
  4. Step 4: Simplify right side
    118,964.90x = 10,712,267,904.74
  5. Step 5: Solve for x
    x = 10,712,267,904.74/118,964.90
  6. Step 6: Final answer
    x = 90,045.62

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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.