Home / 130,068.72-195,064.60-55,187.92

Finding the Fourth Proportional to 130,068.72, 195,064.60 and 55,187.92

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Solution

The fourth proportional to 130,068.72, 195,064.60 and 55,187.92 is: 82,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,068.72 : 195,064.60 = 55,187.92 : x
  2. Step 2: Convert to fraction form
    130,068.72/195,064.60 = 55,187.92/x
  3. Step 3: Cross multiply
    130,068.72x = 195,064.60 × 55,187.92
  4. Step 4: Simplify right side
    130,068.72x = 10,765,209,539.63
  5. Step 5: Solve for x
    x = 10,765,209,539.63/130,068.72
  6. Step 6: Final answer
    x = 82,765.55

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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.