Home / 132,189.95-182,516.94-81,271.01

Finding the Fourth Proportional to 132,189.95, 182,516.94 and 81,271.01

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Solution

The fourth proportional to 132,189.95, 182,516.94 and 81,271.01 is: 112,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,189.95 : 182,516.94 = 81,271.01 : x
  2. Step 2: Convert to fraction form
    132,189.95/182,516.94 = 81,271.01/x
  3. Step 3: Cross multiply
    132,189.95x = 182,516.94 × 81,271.01
  4. Step 4: Simplify right side
    132,189.95x = 14,833,335,143.32
  5. Step 5: Solve for x
    x = 14,833,335,143.32/132,189.95
  6. Step 6: Final answer
    x = 112,212.28

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1.5x scale

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.