Home / 141,888.07-195,804.25-78,225.87

Finding the Fourth Proportional to 141,888.07, 195,804.25 and 78,225.87

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Solution

The fourth proportional to 141,888.07, 195,804.25 and 78,225.87 is: 107,950.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,888.07 : 195,804.25 = 78,225.87 : x
  2. Step 2: Convert to fraction form
    141,888.07/195,804.25 = 78,225.87/x
  3. Step 3: Cross multiply
    141,888.07x = 195,804.25 × 78,225.87
  4. Step 4: Simplify right side
    141,888.07x = 15,316,958,344.65
  5. Step 5: Solve for x
    x = 15,316,958,344.65/141,888.07
  6. Step 6: Final answer
    x = 107,950.99

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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.