Home / 171,977.80-257,966.72-72,111.28

Finding the Fourth Proportional to 171,977.80, 257,966.72 and 72,111.28

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Solution

The fourth proportional to 171,977.80, 257,966.72 and 72,111.28 is: 108,166.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,977.80 : 257,966.72 = 72,111.28 : x
  2. Step 2: Convert to fraction form
    171,977.80/257,966.72 = 72,111.28/x
  3. Step 3: Cross multiply
    171,977.80x = 257,966.72 × 72,111.28
  4. Step 4: Simplify right side
    171,977.80x = 18,602,310,376.60
  5. Step 5: Solve for x
    x = 18,602,310,376.60/171,977.80
  6. Step 6: Final answer
    x = 108,166.93

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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.