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Finding the Fourth Proportional to 132,493.59, 182,780.84 and 78,748.07

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Solution

The fourth proportional to 132,493.59, 182,780.84 and 78,748.07 is: 108,636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,493.59 : 182,780.84 = 78,748.07 : x
  2. Step 2: Convert to fraction form
    132,493.59/182,780.84 = 78,748.07/x
  3. Step 3: Cross multiply
    132,493.59x = 182,780.84 × 78,748.07
  4. Step 4: Simplify right side
    132,493.59x = 14,393,637,075.33
  5. Step 5: Solve for x
    x = 14,393,637,075.33/132,493.59
  6. Step 6: Final answer
    x = 108,636.48

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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.