Home / 114,769.88-172,145.10-39,870.80

Finding the Fourth Proportional to 114,769.88, 172,145.10 and 39,870.80

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Solution

The fourth proportional to 114,769.88, 172,145.10 and 39,870.80 is: 59,802.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,769.88 : 172,145.10 = 39,870.80 : x
  2. Step 2: Convert to fraction form
    114,769.88/172,145.10 = 39,870.80/x
  3. Step 3: Cross multiply
    114,769.88x = 172,145.10 × 39,870.80
  4. Step 4: Simplify right side
    114,769.88x = 6,863,562,853.08
  5. Step 5: Solve for x
    x = 6,863,562,853.08/114,769.88
  6. Step 6: Final answer
    x = 59,802.82

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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.