Home / 133,052.88-183,612.98-90,685.42

Finding the Fourth Proportional to 133,052.88, 183,612.98 and 90,685.42

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Solution

The fourth proportional to 133,052.88, 183,612.98 and 90,685.42 is: 125,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,052.88 : 183,612.98 = 90,685.42 : x
  2. Step 2: Convert to fraction form
    133,052.88/183,612.98 = 90,685.42/x
  3. Step 3: Cross multiply
    133,052.88x = 183,612.98 × 90,685.42
  4. Step 4: Simplify right side
    133,052.88x = 16,651,020,208.75
  5. Step 5: Solve for x
    x = 16,651,020,208.75/133,052.88
  6. Step 6: Final answer
    x = 125,145.88

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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.