Home / 130,917.28-196,400.40-71,720.32

Finding the Fourth Proportional to 130,917.28, 196,400.40 and 71,720.32

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Solution

The fourth proportional to 130,917.28, 196,400.40 and 71,720.32 is: 107,593.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,917.28 : 196,400.40 = 71,720.32 : x
  2. Step 2: Convert to fraction form
    130,917.28/196,400.40 = 71,720.32/x
  3. Step 3: Cross multiply
    130,917.28x = 196,400.40 × 71,720.32
  4. Step 4: Simplify right side
    130,917.28x = 14,085,899,536.13
  5. Step 5: Solve for x
    x = 14,085,899,536.13/130,917.28
  6. Step 6: Final answer
    x = 107,593.89

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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.