Home / 119,986.65-179,918.42-70,164.09

Finding the Fourth Proportional to 119,986.65, 179,918.42 and 70,164.09

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Solution

The fourth proportional to 119,986.65, 179,918.42 and 70,164.09 is: 105,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,986.65 : 179,918.42 = 70,164.09 : x
  2. Step 2: Convert to fraction form
    119,986.65/179,918.42 = 70,164.09/x
  3. Step 3: Cross multiply
    119,986.65x = 179,918.42 × 70,164.09
  4. Step 4: Simplify right side
    119,986.65x = 12,623,811,862.72
  5. Step 5: Solve for x
    x = 12,623,811,862.72/119,986.65
  6. Step 6: Final answer
    x = 105,210.14

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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.