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Finding the Fourth Proportional to 132,980.66, 183,488.25 and 79,270.67

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Solution

The fourth proportional to 132,980.66, 183,488.25 and 79,270.67 is: 109,378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,980.66 : 183,488.25 = 79,270.67 : x
  2. Step 2: Convert to fraction form
    132,980.66/183,488.25 = 79,270.67/x
  3. Step 3: Cross multiply
    132,980.66x = 183,488.25 × 79,270.67
  4. Step 4: Simplify right side
    132,980.66x = 14,545,236,514.63
  5. Step 5: Solve for x
    x = 14,545,236,514.63/132,980.66
  6. Step 6: Final answer
    x = 109,378.59

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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.