Home / 171,935.32-257,820.02-72,068.70

Finding the Fourth Proportional to 171,935.32, 257,820.02 and 72,068.70

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Solution

The fourth proportional to 171,935.32, 257,820.02 and 72,068.70 is: 108,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,935.32 : 257,820.02 = 72,068.70 : x
  2. Step 2: Convert to fraction form
    171,935.32/257,820.02 = 72,068.70/x
  3. Step 3: Cross multiply
    171,935.32x = 257,820.02 × 72,068.70
  4. Step 4: Simplify right side
    171,935.32x = 18,580,753,101.88
  5. Step 5: Solve for x
    x = 18,580,753,101.88/171,935.32
  6. Step 6: Final answer
    x = 108,068.27

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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.