Home / 130,657.12-195,994.80-51,771.12

Finding the Fourth Proportional to 130,657.12, 195,994.80 and 51,771.12

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Solution

The fourth proportional to 130,657.12, 195,994.80 and 51,771.12 is: 77,660.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,657.12 : 195,994.80 = 51,771.12 : x
  2. Step 2: Convert to fraction form
    130,657.12/195,994.80 = 51,771.12/x
  3. Step 3: Cross multiply
    130,657.12x = 195,994.80 × 51,771.12
  4. Step 4: Simplify right side
    130,657.12x = 10,146,870,310.18
  5. Step 5: Solve for x
    x = 10,146,870,310.18/130,657.12
  6. Step 6: Final answer
    x = 77,660.29

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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.