Home / 132,781.48-183,239.21-79,068.76

Finding the Fourth Proportional to 132,781.48, 183,239.21 and 79,068.76

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Solution

The fourth proportional to 132,781.48, 183,239.21 and 79,068.76 is: 109,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,781.48 : 183,239.21 = 79,068.76 : x
  2. Step 2: Convert to fraction form
    132,781.48/183,239.21 = 79,068.76/x
  3. Step 3: Cross multiply
    132,781.48x = 183,239.21 × 79,068.76
  4. Step 4: Simplify right side
    132,781.48x = 14,488,496,857.65
  5. Step 5: Solve for x
    x = 14,488,496,857.65/132,781.48
  6. Step 6: Final answer
    x = 109,115.35

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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.