Home / 154,528.04-213,231.08-86,535.56

Finding the Fourth Proportional to 154,528.04, 213,231.08 and 86,535.56

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Solution

The fourth proportional to 154,528.04, 213,231.08 and 86,535.56 is: 119,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,528.04 : 213,231.08 = 86,535.56 : x
  2. Step 2: Convert to fraction form
    154,528.04/213,231.08 = 86,535.56/x
  3. Step 3: Cross multiply
    154,528.04x = 213,231.08 × 86,535.56
  4. Step 4: Simplify right side
    154,528.04x = 18,452,070,917.20
  5. Step 5: Solve for x
    x = 18,452,070,917.20/154,528.04
  6. Step 6: Final answer
    x = 119,409.21

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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.