Home / 126,981.01-189,544.31-117,730

Finding the Fourth Proportional to 126,981.01, 189,544.31 and 117,730

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Solution

The fourth proportional to 126,981.01, 189,544.31 and 117,730 is: 175,735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,981.01 : 189,544.31 = 117,730 : x
  2. Step 2: Convert to fraction form
    126,981.01/189,544.31 = 117,730/x
  3. Step 3: Cross multiply
    126,981.01x = 189,544.31 × 117,730
  4. Step 4: Simplify right side
    126,981.01x = 22,315,051,616.30
  5. Step 5: Solve for x
    x = 22,315,051,616.30/126,981.01
  6. Step 6: Final answer
    x = 175,735.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.