Home / 145,986.56-218,979.36-35,178.56

Finding the Fourth Proportional to 145,986.56, 218,979.36 and 35,178.56

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Solution

The fourth proportional to 145,986.56, 218,979.36 and 35,178.56 is: 52,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,986.56 : 218,979.36 = 35,178.56 : x
  2. Step 2: Convert to fraction form
    145,986.56/218,979.36 = 35,178.56/x
  3. Step 3: Cross multiply
    145,986.56x = 218,979.36 × 35,178.56
  4. Step 4: Simplify right side
    145,986.56x = 7,703,378,554.52
  5. Step 5: Solve for x
    x = 7,703,378,554.52/145,986.56
  6. Step 6: Final answer
    x = 52,767.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.