Home / 158,528.96-218,768.16-91,459.52

Finding the Fourth Proportional to 158,528.96, 218,768.16 and 91,459.52

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Solution

The fourth proportional to 158,528.96, 218,768.16 and 91,459.52 is: 126,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,528.96 : 218,768.16 = 91,459.52 : x
  2. Step 2: Convert to fraction form
    158,528.96/218,768.16 = 91,459.52/x
  3. Step 3: Cross multiply
    158,528.96x = 218,768.16 × 91,459.52
  4. Step 4: Simplify right side
    158,528.96x = 20,008,430,904.88
  5. Step 5: Solve for x
    x = 20,008,430,904.88/158,528.96
  6. Step 6: Final answer
    x = 126,213.10

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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.