Home / 147,318.93-203,305.98-83,662.65

Finding the Fourth Proportional to 147,318.93, 203,305.98 and 83,662.65

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Solution

The fourth proportional to 147,318.93, 203,305.98 and 83,662.65 is: 115,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,318.93 : 203,305.98 = 83,662.65 : x
  2. Step 2: Convert to fraction form
    147,318.93/203,305.98 = 83,662.65/x
  3. Step 3: Cross multiply
    147,318.93x = 203,305.98 × 83,662.65
  4. Step 4: Simplify right side
    147,318.93x = 17,009,117,047.65
  5. Step 5: Solve for x
    x = 17,009,117,047.65/147,318.93
  6. Step 6: Final answer
    x = 115,457.78

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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.