Home / 190,712.68-263,270.10-130,381

Finding the Fourth Proportional to 190,712.68, 263,270.10 and 130,381

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Solution

The fourth proportional to 190,712.68, 263,270.10 and 130,381 is: 179,984.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,712.68 : 263,270.10 = 130,381 : x
  2. Step 2: Convert to fraction form
    190,712.68/263,270.10 = 130,381/x
  3. Step 3: Cross multiply
    190,712.68x = 263,270.10 × 130,381
  4. Step 4: Simplify right side
    190,712.68x = 34,325,418,908.10
  5. Step 5: Solve for x
    x = 34,325,418,908.10/190,712.68
  6. Step 6: Final answer
    x = 179,984.99

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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.