Home / 136,666.17-188,599.23-76,236.80

Finding the Fourth Proportional to 136,666.17, 188,599.23 and 76,236.80

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Solution

The fourth proportional to 136,666.17, 188,599.23 and 76,236.80 is: 105,206.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,666.17 : 188,599.23 = 76,236.80 : x
  2. Step 2: Convert to fraction form
    136,666.17/188,599.23 = 76,236.80/x
  3. Step 3: Cross multiply
    136,666.17x = 188,599.23 × 76,236.80
  4. Step 4: Simplify right side
    136,666.17x = 14,378,200,834.67
  5. Step 5: Solve for x
    x = 14,378,200,834.67/136,666.17
  6. Step 6: Final answer
    x = 105,206.73

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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.