Home / 115,336.24-172,921.31-70,871.12

Finding the Fourth Proportional to 115,336.24, 172,921.31 and 70,871.12

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Solution

The fourth proportional to 115,336.24, 172,921.31 and 70,871.12 is: 106,255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.24 : 172,921.31 = 70,871.12 : x
  2. Step 2: Convert to fraction form
    115,336.24/172,921.31 = 70,871.12/x
  3. Step 3: Cross multiply
    115,336.24x = 172,921.31 × 70,871.12
  4. Step 4: Simplify right side
    115,336.24x = 12,255,127,005.48
  5. Step 5: Solve for x
    x = 12,255,127,005.48/115,336.24
  6. Step 6: Final answer
    x = 106,255.65

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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.