Home / 132,185.02-182,332.14-78,431.88

Finding the Fourth Proportional to 132,185.02, 182,332.14 and 78,431.88

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Solution

The fourth proportional to 132,185.02, 182,332.14 and 78,431.88 is: 108,186.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,185.02 : 182,332.14 = 78,431.88 : x
  2. Step 2: Convert to fraction form
    132,185.02/182,332.14 = 78,431.88/x
  3. Step 3: Cross multiply
    132,185.02x = 182,332.14 × 78,431.88
  4. Step 4: Simplify right side
    132,185.02x = 14,300,652,524.62
  5. Step 5: Solve for x
    x = 14,300,652,524.62/132,185.02
  6. Step 6: Final answer
    x = 108,186.64

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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.