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Finding the Fourth Proportional to 130,010.60, 195,034.80 and 55,130.60

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Solution

The fourth proportional to 130,010.60, 195,034.80 and 55,130.60 is: 82,703.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,010.60 : 195,034.80 = 55,130.60 : x
  2. Step 2: Convert to fraction form
    130,010.60/195,034.80 = 55,130.60/x
  3. Step 3: Cross multiply
    130,010.60x = 195,034.80 × 55,130.60
  4. Step 4: Simplify right side
    130,010.60x = 10,752,385,544.88
  5. Step 5: Solve for x
    x = 10,752,385,544.88/130,010.60
  6. Step 6: Final answer
    x = 82,703.91

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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.