Home / 210,382.29-315,576.23-70,140.96

Finding the Fourth Proportional to 210,382.29, 315,576.23 and 70,140.96

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Solution

The fourth proportional to 210,382.29, 315,576.23 and 70,140.96 is: 105,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,382.29 : 315,576.23 = 70,140.96 : x
  2. Step 2: Convert to fraction form
    210,382.29/315,576.23 = 70,140.96/x
  3. Step 3: Cross multiply
    210,382.29x = 315,576.23 × 70,140.96
  4. Step 4: Simplify right side
    210,382.29x = 22,134,819,374.68
  5. Step 5: Solve for x
    x = 22,134,819,374.68/210,382.29
  6. Step 6: Final answer
    x = 105,212.37

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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.