Home / 114,384.96-157,860-71,979.84

Finding the Fourth Proportional to 114,384.96, 157,860 and 71,979.84

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Solution

The fourth proportional to 114,384.96, 157,860 and 71,979.84 is: 99,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,384.96 : 157,860 = 71,979.84 : x
  2. Step 2: Convert to fraction form
    114,384.96/157,860 = 71,979.84/x
  3. Step 3: Cross multiply
    114,384.96x = 157,860 × 71,979.84
  4. Step 4: Simplify right side
    114,384.96x = 11,362,737,542.40
  5. Step 5: Solve for x
    x = 11,362,737,542.40/114,384.96
  6. Step 6: Final answer
    x = 99,337.69

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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.