Home / 139,901.52-193,058.48-76,237.96

Finding the Fourth Proportional to 139,901.52, 193,058.48 and 76,237.96

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Solution

The fourth proportional to 139,901.52, 193,058.48 and 76,237.96 is: 105,205.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,901.52 : 193,058.48 = 76,237.96 : x
  2. Step 2: Convert to fraction form
    139,901.52/193,058.48 = 76,237.96/x
  3. Step 3: Cross multiply
    139,901.52x = 193,058.48 × 76,237.96
  4. Step 4: Simplify right side
    139,901.52x = 14,718,384,675.90
  5. Step 5: Solve for x
    x = 14,718,384,675.90/139,901.52
  6. Step 6: Final answer
    x = 105,205.32

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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.