Home / 134,154.20-185,022.90-83,131.48

Finding the Fourth Proportional to 134,154.20, 185,022.90 and 83,131.48

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Solution

The fourth proportional to 134,154.20, 185,022.90 and 83,131.48 is: 114,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,154.20 : 185,022.90 = 83,131.48 : x
  2. Step 2: Convert to fraction form
    134,154.20/185,022.90 = 83,131.48/x
  3. Step 3: Cross multiply
    134,154.20x = 185,022.90 × 83,131.48
  4. Step 4: Simplify right side
    134,154.20x = 15,381,227,510.89
  5. Step 5: Solve for x
    x = 15,381,227,510.89/134,154.20
  6. Step 6: Final answer
    x = 114,653.34

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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.