Home / 100,886.24-139,217.63-57,863.50

Finding the Fourth Proportional to 100,886.24, 139,217.63 and 57,863.50

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Solution

The fourth proportional to 100,886.24, 139,217.63 and 57,863.50 is: 79,848.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,886.24 : 139,217.63 = 57,863.50 : x
  2. Step 2: Convert to fraction form
    100,886.24/139,217.63 = 57,863.50/x
  3. Step 3: Cross multiply
    100,886.24x = 139,217.63 × 57,863.50
  4. Step 4: Simplify right side
    100,886.24x = 8,055,618,637.42
  5. Step 5: Solve for x
    x = 8,055,618,637.42/100,886.24
  6. Step 6: Final answer
    x = 79,848.54

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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.