Home / 136,929.70-188,944.29-76,492.87

Finding the Fourth Proportional to 136,929.70, 188,944.29 and 76,492.87

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Solution

The fourth proportional to 136,929.70, 188,944.29 and 76,492.87 is: 105,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,929.70 : 188,944.29 = 76,492.87 : x
  2. Step 2: Convert to fraction form
    136,929.70/188,944.29 = 76,492.87/x
  3. Step 3: Cross multiply
    136,929.70x = 188,944.29 × 76,492.87
  4. Step 4: Simplify right side
    136,929.70x = 14,452,891,012.21
  5. Step 5: Solve for x
    x = 14,452,891,012.21/136,929.70
  6. Step 6: Final answer
    x = 105,549.72

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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.