Home / 132,619.82-183,017.68-72,192.20

Finding the Fourth Proportional to 132,619.82, 183,017.68 and 72,192.20

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Solution

The fourth proportional to 132,619.82, 183,017.68 and 72,192.20 is: 99,626.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,619.82 : 183,017.68 = 72,192.20 : x
  2. Step 2: Convert to fraction form
    132,619.82/183,017.68 = 72,192.20/x
  3. Step 3: Cross multiply
    132,619.82x = 183,017.68 × 72,192.20
  4. Step 4: Simplify right side
    132,619.82x = 13,212,448,958.10
  5. Step 5: Solve for x
    x = 13,212,448,958.10/132,619.82
  6. Step 6: Final answer
    x = 99,626.50

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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.