Home / 102,850.65-141,680.21-87,693.93

Finding the Fourth Proportional to 102,850.65, 141,680.21 and 87,693.93

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Solution

The fourth proportional to 102,850.65, 141,680.21 and 87,693.93 is: 120,801.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,850.65 : 141,680.21 = 87,693.93 : x
  2. Step 2: Convert to fraction form
    102,850.65/141,680.21 = 87,693.93/x
  3. Step 3: Cross multiply
    102,850.65x = 141,680.21 × 87,693.93
  4. Step 4: Simplify right side
    102,850.65x = 12,424,493,979.66
  5. Step 5: Solve for x
    x = 12,424,493,979.66/102,850.65
  6. Step 6: Final answer
    x = 120,801.32

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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.