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Finding the Fourth Proportional to 132,768.62, 183,222.80 and 72,339.24

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Solution

The fourth proportional to 132,768.62, 183,222.80 and 72,339.24 is: 99,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,768.62 : 183,222.80 = 72,339.24 : x
  2. Step 2: Convert to fraction form
    132,768.62/183,222.80 = 72,339.24/x
  3. Step 3: Cross multiply
    132,768.62x = 183,222.80 × 72,339.24
  4. Step 4: Simplify right side
    132,768.62x = 13,254,198,102.67
  5. Step 5: Solve for x
    x = 13,254,198,102.67/132,768.62
  6. Step 6: Final answer
    x = 99,829.30

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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.