Home / 134,857,677.72-186,103,595.48-72,978,016.26

Finding the Fourth Proportional to 134,857,677.72, 186,103,595.48 and 72,978,016.26

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Solution

The fourth proportional to 134,857,677.72, 186,103,595.48 and 72,978,016.26 is: 100,709,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,677.72 : 186,103,595.48 = 72,978,016.26 : x
  2. Step 2: Convert to fraction form
    134,857,677.72/186,103,595.48 = 72,978,016.26/x
  3. Step 3: Cross multiply
    134,857,677.72x = 186,103,595.48 × 72,978,016.26
  4. Step 4: Simplify right side
    134,857,677.72x = 13,581,471,216,983,902
  5. Step 5: Solve for x
    x = 13,581,471,216,983,902/134,857,677.72
  6. Step 6: Final answer
    x = 100,709,662.56

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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.