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Finding the Fourth Proportional to 158,200.58, 218,313.88 and 86,579.16

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Solution

The fourth proportional to 158,200.58, 218,313.88 and 86,579.16 is: 119,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,200.58 : 218,313.88 = 86,579.16 : x
  2. Step 2: Convert to fraction form
    158,200.58/218,313.88 = 86,579.16/x
  3. Step 3: Cross multiply
    158,200.58x = 218,313.88 × 86,579.16
  4. Step 4: Simplify right side
    158,200.58x = 18,901,432,346.74
  5. Step 5: Solve for x
    x = 18,901,432,346.74/158,200.58
  6. Step 6: Final answer
    x = 119,477.64

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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.