Home / 132,534.72-182,895.18-72,106.80

Finding the Fourth Proportional to 132,534.72, 182,895.18 and 72,106.80

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Solution

The fourth proportional to 132,534.72, 182,895.18 and 72,106.80 is: 99,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,534.72 : 182,895.18 = 72,106.80 : x
  2. Step 2: Convert to fraction form
    132,534.72/182,895.18 = 72,106.80/x
  3. Step 3: Cross multiply
    132,534.72x = 182,895.18 × 72,106.80
  4. Step 4: Simplify right side
    132,534.72x = 13,187,986,165.22
  5. Step 5: Solve for x
    x = 13,187,986,165.22/132,534.72
  6. Step 6: Final answer
    x = 99,505.90

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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.