Home / 171,588.16-257,278.02-76,800.34

Finding the Fourth Proportional to 171,588.16, 257,278.02 and 76,800.34

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Solution

The fourth proportional to 171,588.16, 257,278.02 and 76,800.34 is: 115,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,588.16 : 257,278.02 = 76,800.34 : x
  2. Step 2: Convert to fraction form
    171,588.16/257,278.02 = 76,800.34/x
  3. Step 3: Cross multiply
    171,588.16x = 257,278.02 × 76,800.34
  4. Step 4: Simplify right side
    171,588.16x = 19,759,039,410.53
  5. Step 5: Solve for x
    x = 19,759,039,410.53/171,588.16
  6. Step 6: Final answer
    x = 115,153.86

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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.