Home / 207,076.64-310,554.88-80,688.69

Finding the Fourth Proportional to 207,076.64, 310,554.88 and 80,688.69

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Solution

The fourth proportional to 207,076.64, 310,554.88 and 80,688.69 is: 121,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,076.64 : 310,554.88 = 80,688.69 : x
  2. Step 2: Convert to fraction form
    207,076.64/310,554.88 = 80,688.69/x
  3. Step 3: Cross multiply
    207,076.64x = 310,554.88 × 80,688.69
  4. Step 4: Simplify right side
    207,076.64x = 25,058,266,238.59
  5. Step 5: Solve for x
    x = 25,058,266,238.59/207,076.64
  6. Step 6: Final answer
    x = 121,009.63

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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.