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Finding the Fourth Proportional to 132,000.74, 182,144.40 and 75,415.76

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Solution

The fourth proportional to 132,000.74, 182,144.40 and 75,415.76 is: 104,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,000.74 : 182,144.40 = 75,415.76 : x
  2. Step 2: Convert to fraction form
    132,000.74/182,144.40 = 75,415.76/x
  3. Step 3: Cross multiply
    132,000.74x = 182,144.40 × 75,415.76
  4. Step 4: Simplify right side
    132,000.74x = 13,736,558,355.74
  5. Step 5: Solve for x
    x = 13,736,558,355.74/132,000.74
  6. Step 6: Final answer
    x = 104,064.25

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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.