Home / 114,864.20-172,120.44-77,285.08

Finding the Fourth Proportional to 114,864.20, 172,120.44 and 77,285.08

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Solution

The fourth proportional to 114,864.20, 172,120.44 and 77,285.08 is: 115,809.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,864.20 : 172,120.44 = 77,285.08 : x
  2. Step 2: Convert to fraction form
    114,864.20/172,120.44 = 77,285.08/x
  3. Step 3: Cross multiply
    114,864.20x = 172,120.44 × 77,285.08
  4. Step 4: Simplify right side
    114,864.20x = 13,302,341,975.04
  5. Step 5: Solve for x
    x = 13,302,341,975.04/114,864.20
  6. Step 6: Final answer
    x = 115,809.29

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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.