Home / 154,508.04-213,203.48-86,515.56

Finding the Fourth Proportional to 154,508.04, 213,203.48 and 86,515.56

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Solution

The fourth proportional to 154,508.04, 213,203.48 and 86,515.56 is: 119,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,508.04 : 213,203.48 = 86,515.56 : x
  2. Step 2: Convert to fraction form
    154,508.04/213,203.48 = 86,515.56/x
  3. Step 3: Cross multiply
    154,508.04x = 213,203.48 × 86,515.56
  4. Step 4: Simplify right side
    154,508.04x = 18,445,418,033.57
  5. Step 5: Solve for x
    x = 18,445,418,033.57/154,508.04
  6. Step 6: Final answer
    x = 119,381.61

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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.