Home / 229,986.94-317,379.55-128,010.77

Finding the Fourth Proportional to 229,986.94, 317,379.55 and 128,010.77

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Solution

The fourth proportional to 229,986.94, 317,379.55 and 128,010.77 is: 176,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,986.94 : 317,379.55 = 128,010.77 : x
  2. Step 2: Convert to fraction form
    229,986.94/317,379.55 = 128,010.77/x
  3. Step 3: Cross multiply
    229,986.94x = 317,379.55 × 128,010.77
  4. Step 4: Simplify right side
    229,986.94x = 40,628,001,051.18
  5. Step 5: Solve for x
    x = 40,628,001,051.18/229,986.94
  6. Step 6: Final answer
    x = 176,653.52

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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.