Home / 131,922-182,052.36-72,304.72

Finding the Fourth Proportional to 131,922, 182,052.36 and 72,304.72

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Solution

The fourth proportional to 131,922, 182,052.36 and 72,304.72 is: 99,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,922 : 182,052.36 = 72,304.72 : x
  2. Step 2: Convert to fraction form
    131,922/182,052.36 = 72,304.72/x
  3. Step 3: Cross multiply
    131,922x = 182,052.36 × 72,304.72
  4. Step 4: Simplify right side
    131,922x = 13,163,244,915.14
  5. Step 5: Solve for x
    x = 13,163,244,915.14/131,922
  6. Step 6: Final answer
    x = 99,780.51

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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.