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Finding the Fourth Proportional to 130,046.40, 195,069.60 and 74,059.20

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Solution

The fourth proportional to 130,046.40, 195,069.60 and 74,059.20 is: 111,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,046.40 : 195,069.60 = 74,059.20 : x
  2. Step 2: Convert to fraction form
    130,046.40/195,069.60 = 74,059.20/x
  3. Step 3: Cross multiply
    130,046.40x = 195,069.60 × 74,059.20
  4. Step 4: Simplify right side
    130,046.40x = 14,446,698,520.32
  5. Step 5: Solve for x
    x = 14,446,698,520.32/130,046.40
  6. Step 6: Final answer
    x = 111,088.80

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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.