Home / 126,312.31-189,467.74-31,542.31

Finding the Fourth Proportional to 126,312.31, 189,467.74 and 31,542.31

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Solution

The fourth proportional to 126,312.31, 189,467.74 and 31,542.31 is: 47,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,312.31 : 189,467.74 = 31,542.31 : x
  2. Step 2: Convert to fraction form
    126,312.31/189,467.74 = 31,542.31/x
  3. Step 3: Cross multiply
    126,312.31x = 189,467.74 × 31,542.31
  4. Step 4: Simplify right side
    126,312.31x = 5,976,249,085.03
  5. Step 5: Solve for x
    x = 5,976,249,085.03/126,312.31
  6. Step 6: Final answer
    x = 47,313.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.