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Finding the Fourth Proportional to 158,958.09, 219,361.50 and 87,337.89

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Solution

The fourth proportional to 158,958.09, 219,361.50 and 87,337.89 is: 120,525.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,958.09 : 219,361.50 = 87,337.89 : x
  2. Step 2: Convert to fraction form
    158,958.09/219,361.50 = 87,337.89/x
  3. Step 3: Cross multiply
    158,958.09x = 219,361.50 × 87,337.89
  4. Step 4: Simplify right side
    158,958.09x = 19,158,570,557.24
  5. Step 5: Solve for x
    x = 19,158,570,557.24/158,958.09
  6. Step 6: Final answer
    x = 120,525.92

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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.