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Finding the Fourth Proportional to 158,871.57, 238,361.96 and 99,637.89

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Solution

The fourth proportional to 158,871.57, 238,361.96 and 99,637.89 is: 149,491.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,871.57 : 238,361.96 = 99,637.89 : x
  2. Step 2: Convert to fraction form
    158,871.57/238,361.96 = 99,637.89/x
  3. Step 3: Cross multiply
    158,871.57x = 238,361.96 × 99,637.89
  4. Step 4: Simplify right side
    158,871.57x = 23,749,882,750.66
  5. Step 5: Solve for x
    x = 23,749,882,750.66/158,871.57
  6. Step 6: Final answer
    x = 149,491.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.