Home / 154,334.74-212,992.50-86,358.16

Finding the Fourth Proportional to 154,334.74, 212,992.50 and 86,358.16

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Solution

The fourth proportional to 154,334.74, 212,992.50 and 86,358.16 is: 119,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,334.74 : 212,992.50 = 86,358.16 : x
  2. Step 2: Convert to fraction form
    154,334.74/212,992.50 = 86,358.16/x
  3. Step 3: Cross multiply
    154,334.74x = 212,992.50 × 86,358.16
  4. Step 4: Simplify right side
    154,334.74x = 18,393,640,393.80
  5. Step 5: Solve for x
    x = 18,393,640,393.80/154,334.74
  6. Step 6: Final answer
    x = 119,180.17

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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.