Home / 133,052.89-183,612.96-90,685.42

Finding the Fourth Proportional to 133,052.89, 183,612.96 and 90,685.42

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Solution

The fourth proportional to 133,052.89, 183,612.96 and 90,685.42 is: 125,145.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,052.89 : 183,612.96 = 90,685.42 : x
  2. Step 2: Convert to fraction form
    133,052.89/183,612.96 = 90,685.42/x
  3. Step 3: Cross multiply
    133,052.89x = 183,612.96 × 90,685.42
  4. Step 4: Simplify right side
    133,052.89x = 16,651,018,395.04
  5. Step 5: Solve for x
    x = 16,651,018,395.04/133,052.89
  6. Step 6: Final answer
    x = 125,145.86

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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.