Home / 101,257.10-139,710.93-58,790.42

Finding the Fourth Proportional to 101,257.10, 139,710.93 and 58,790.42

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Solution

The fourth proportional to 101,257.10, 139,710.93 and 58,790.42 is: 81,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,257.10 : 139,710.93 = 58,790.42 : x
  2. Step 2: Convert to fraction form
    101,257.10/139,710.93 = 58,790.42/x
  3. Step 3: Cross multiply
    101,257.10x = 139,710.93 × 58,790.42
  4. Step 4: Simplify right side
    101,257.10x = 8,213,664,253.29
  5. Step 5: Solve for x
    x = 8,213,664,253.29/101,257.10
  6. Step 6: Final answer
    x = 81,116.92

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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.