Home / 102,133.24-140,886.31-61,286.80

Finding the Fourth Proportional to 102,133.24, 140,886.31 and 61,286.80

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Solution

The fourth proportional to 102,133.24, 140,886.31 and 61,286.80 is: 84,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,133.24 : 140,886.31 = 61,286.80 : x
  2. Step 2: Convert to fraction form
    102,133.24/140,886.31 = 61,286.80/x
  3. Step 3: Cross multiply
    102,133.24x = 140,886.31 × 61,286.80
  4. Step 4: Simplify right side
    102,133.24x = 8,634,471,545.96
  5. Step 5: Solve for x
    x = 8,634,471,545.96/102,133.24
  6. Step 6: Final answer
    x = 84,541.25

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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.