Home / 137,400.27-189,609.07-76,973.46

Finding the Fourth Proportional to 137,400.27, 189,609.07 and 76,973.46

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Solution

The fourth proportional to 137,400.27, 189,609.07 and 76,973.46 is: 106,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,400.27 : 189,609.07 = 76,973.46 : x
  2. Step 2: Convert to fraction form
    137,400.27/189,609.07 = 76,973.46/x
  3. Step 3: Cross multiply
    137,400.27x = 189,609.07 × 76,973.46
  4. Step 4: Simplify right side
    137,400.27x = 14,594,866,165.28
  5. Step 5: Solve for x
    x = 14,594,866,165.28/137,400.27
  6. Step 6: Final answer
    x = 106,221.52

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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.