Home / 130,105.68-195,224.12-51,276.40

Finding the Fourth Proportional to 130,105.68, 195,224.12 and 51,276.40

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Solution

The fourth proportional to 130,105.68, 195,224.12 and 51,276.40 is: 76,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,105.68 : 195,224.12 = 51,276.40 : x
  2. Step 2: Convert to fraction form
    130,105.68/195,224.12 = 51,276.40/x
  3. Step 3: Cross multiply
    130,105.68x = 195,224.12 × 51,276.40
  4. Step 4: Simplify right side
    130,105.68x = 10,010,390,066.77
  5. Step 5: Solve for x
    x = 10,010,390,066.77/130,105.68
  6. Step 6: Final answer
    x = 76,940.45

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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.