Home / 143,819.80-215,567.70-68,975.80

Finding the Fourth Proportional to 143,819.80, 215,567.70 and 68,975.80

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Solution

The fourth proportional to 143,819.80, 215,567.70 and 68,975.80 is: 103,386.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,819.80 : 215,567.70 = 68,975.80 : x
  2. Step 2: Convert to fraction form
    143,819.80/215,567.70 = 68,975.80/x
  3. Step 3: Cross multiply
    143,819.80x = 215,567.70 × 68,975.80
  4. Step 4: Simplify right side
    143,819.80x = 14,868,954,561.66
  5. Step 5: Solve for x
    x = 14,868,954,561.66/143,819.80
  6. Step 6: Final answer
    x = 103,386.00

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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.