Home / 142,516.80-196,636.26-85,132.65

Finding the Fourth Proportional to 142,516.80, 196,636.26 and 85,132.65

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Solution

The fourth proportional to 142,516.80, 196,636.26 and 85,132.65 is: 117,461.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,516.80 : 196,636.26 = 85,132.65 : x
  2. Step 2: Convert to fraction form
    142,516.80/196,636.26 = 85,132.65/x
  3. Step 3: Cross multiply
    142,516.80x = 196,636.26 × 85,132.65
  4. Step 4: Simplify right side
    142,516.80x = 16,740,165,899.89
  5. Step 5: Solve for x
    x = 16,740,165,899.89/142,516.80
  6. Step 6: Final answer
    x = 117,461.00

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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.