Home / 158,087.87-218,166.45-86,467.88

Finding the Fourth Proportional to 158,087.87, 218,166.45 and 86,467.88

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Solution

The fourth proportional to 158,087.87, 218,166.45 and 86,467.88 is: 119,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,087.87 : 218,166.45 = 86,467.88 : x
  2. Step 2: Convert to fraction form
    158,087.87/218,166.45 = 86,467.88/x
  3. Step 3: Cross multiply
    158,087.87x = 218,166.45 × 86,467.88
  4. Step 4: Simplify right side
    158,087.87x = 18,864,390,639.79
  5. Step 5: Solve for x
    x = 18,864,390,639.79/158,087.87
  6. Step 6: Final answer
    x = 119,328.52

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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.