Home / 130,212.60-195,383.70-51,329.40

Finding the Fourth Proportional to 130,212.60, 195,383.70 and 51,329.40

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Solution

The fourth proportional to 130,212.60, 195,383.70 and 51,329.40 is: 77,019.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,212.60 : 195,383.70 = 51,329.40 : x
  2. Step 2: Convert to fraction form
    130,212.60/195,383.70 = 51,329.40/x
  3. Step 3: Cross multiply
    130,212.60x = 195,383.70 × 51,329.40
  4. Step 4: Simplify right side
    130,212.60x = 10,028,928,090.78
  5. Step 5: Solve for x
    x = 10,028,928,090.78/130,212.60
  6. Step 6: Final answer
    x = 77,019.64

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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.