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Finding the Fourth Proportional to 158,087.44, 218,148.84 and 86,463.76

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Solution

The fourth proportional to 158,087.44, 218,148.84 and 86,463.76 is: 119,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,087.44 : 218,148.84 = 86,463.76 : x
  2. Step 2: Convert to fraction form
    158,087.44/218,148.84 = 86,463.76/x
  3. Step 3: Cross multiply
    158,087.44x = 218,148.84 × 86,463.76
  4. Step 4: Simplify right side
    158,087.44x = 18,861,968,946.04
  5. Step 5: Solve for x
    x = 18,861,968,946.04/158,087.44
  6. Step 6: Final answer
    x = 119,313.52

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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.