Home / 132,668.42-183,081.64-72,238.92

Finding the Fourth Proportional to 132,668.42, 183,081.64 and 72,238.92

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Solution

The fourth proportional to 132,668.42, 183,081.64 and 72,238.92 is: 99,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,668.42 : 183,081.64 = 72,238.92 : x
  2. Step 2: Convert to fraction form
    132,668.42/183,081.64 = 72,238.92/x
  3. Step 3: Cross multiply
    132,668.42x = 183,081.64 × 72,238.92
  4. Step 4: Simplify right side
    132,668.42x = 13,225,619,728.64
  5. Step 5: Solve for x
    x = 13,225,619,728.64/132,668.42
  6. Step 6: Final answer
    x = 99,689.28

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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.