Home / 102,683.09-141,693.41-57,357.11

Finding the Fourth Proportional to 102,683.09, 141,693.41 and 57,357.11

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Solution

The fourth proportional to 102,683.09, 141,693.41 and 57,357.11 is: 79,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,683.09 : 141,693.41 = 57,357.11 : x
  2. Step 2: Convert to fraction form
    102,683.09/141,693.41 = 57,357.11/x
  3. Step 3: Cross multiply
    102,683.09x = 141,693.41 × 57,357.11
  4. Step 4: Simplify right side
    102,683.09x = 8,127,123,938.57
  5. Step 5: Solve for x
    x = 8,127,123,938.57/102,683.09
  6. Step 6: Final answer
    x = 79,147.64

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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.