Home / 158,329.32-218,495.16-86,709.84

Finding the Fourth Proportional to 158,329.32, 218,495.16 and 86,709.84

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Solution

The fourth proportional to 158,329.32, 218,495.16 and 86,709.84 is: 119,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,329.32 : 218,495.16 = 86,709.84 : x
  2. Step 2: Convert to fraction form
    158,329.32/218,495.16 = 86,709.84/x
  3. Step 3: Cross multiply
    158,329.32x = 218,495.16 × 86,709.84
  4. Step 4: Simplify right side
    158,329.32x = 18,945,680,364.37
  5. Step 5: Solve for x
    x = 18,945,680,364.37/158,329.32
  6. Step 6: Final answer
    x = 119,659.96

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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.