Home / 136,944.68-188,983.14-76,520.84

Finding the Fourth Proportional to 136,944.68, 188,983.14 and 76,520.84

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Solution

The fourth proportional to 136,944.68, 188,983.14 and 76,520.84 is: 105,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,944.68 : 188,983.14 = 76,520.84 : x
  2. Step 2: Convert to fraction form
    136,944.68/188,983.14 = 76,520.84/x
  3. Step 3: Cross multiply
    136,944.68x = 188,983.14 × 76,520.84
  4. Step 4: Simplify right side
    136,944.68x = 14,461,148,618.64
  5. Step 5: Solve for x
    x = 14,461,148,618.64/136,944.68
  6. Step 6: Final answer
    x = 105,598.47

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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.