Home / 190,875.49-286,249.65-76,993.89

Finding the Fourth Proportional to 190,875.49, 286,249.65 and 76,993.89

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Solution

The fourth proportional to 190,875.49, 286,249.65 and 76,993.89 is: 115,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,875.49 : 286,249.65 = 76,993.89 : x
  2. Step 2: Convert to fraction form
    190,875.49/286,249.65 = 76,993.89/x
  3. Step 3: Cross multiply
    190,875.49x = 286,249.65 × 76,993.89
  4. Step 4: Simplify right side
    190,875.49x = 22,039,472,633.39
  5. Step 5: Solve for x
    x = 22,039,472,633.39/190,875.49
  6. Step 6: Final answer
    x = 115,465.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.