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Finding the Fourth Proportional to 130,142.80, 195,084.60 and 59,899.60

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Solution

The fourth proportional to 130,142.80, 195,084.60 and 59,899.60 is: 89,789.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,142.80 : 195,084.60 = 59,899.60 : x
  2. Step 2: Convert to fraction form
    130,142.80/195,084.60 = 59,899.60/x
  3. Step 3: Cross multiply
    130,142.80x = 195,084.60 × 59,899.60
  4. Step 4: Simplify right side
    130,142.80x = 11,685,489,506.16
  5. Step 5: Solve for x
    x = 11,685,489,506.16/130,142.80
  6. Step 6: Final answer
    x = 89,789.75

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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.