Home / 137,301.48-189,378.20-126,007.45

Finding the Fourth Proportional to 137,301.48, 189,378.20 and 126,007.45

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Solution

The fourth proportional to 137,301.48, 189,378.20 and 126,007.45 is: 173,800.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,301.48 : 189,378.20 = 126,007.45 : x
  2. Step 2: Convert to fraction form
    137,301.48/189,378.20 = 126,007.45/x
  3. Step 3: Cross multiply
    137,301.48x = 189,378.20 × 126,007.45
  4. Step 4: Simplify right side
    137,301.48x = 23,863,063,909.16
  5. Step 5: Solve for x
    x = 23,863,063,909.16/137,301.48
  6. Step 6: Final answer
    x = 173,800.49

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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.