Home / 130,178.72-195,379.02-51,348.30

Finding the Fourth Proportional to 130,178.72, 195,379.02 and 51,348.30

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Solution

The fourth proportional to 130,178.72, 195,379.02 and 51,348.30 is: 77,066.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,178.72 : 195,379.02 = 51,348.30 : x
  2. Step 2: Convert to fraction form
    130,178.72/195,379.02 = 51,348.30/x
  3. Step 3: Cross multiply
    130,178.72x = 195,379.02 × 51,348.30
  4. Step 4: Simplify right side
    130,178.72x = 10,032,380,532.67
  5. Step 5: Solve for x
    x = 10,032,380,532.67/130,178.72
  6. Step 6: Final answer
    x = 77,066.21

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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.