Home / 145,933.88-201,388.98-78,865.88

Finding the Fourth Proportional to 145,933.88, 201,388.98 and 78,865.88

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Solution

The fourth proportional to 145,933.88, 201,388.98 and 78,865.88 is: 108,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,933.88 : 201,388.98 = 78,865.88 : x
  2. Step 2: Convert to fraction form
    145,933.88/201,388.98 = 78,865.88/x
  3. Step 3: Cross multiply
    145,933.88x = 201,388.98 × 78,865.88
  4. Step 4: Simplify right side
    145,933.88x = 15,882,719,130.00
  5. Step 5: Solve for x
    x = 15,882,719,130.00/145,933.88
  6. Step 6: Final answer
    x = 108,835.04

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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.