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Finding the Fourth Proportional to 161,987.60, 242,592.60 and 130,883.60

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Solution

The fourth proportional to 161,987.60, 242,592.60 and 130,883.60 is: 196,011.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,987.60 : 242,592.60 = 130,883.60 : x
  2. Step 2: Convert to fraction form
    161,987.60/242,592.60 = 130,883.60/x
  3. Step 3: Cross multiply
    161,987.60x = 242,592.60 × 130,883.60
  4. Step 4: Simplify right side
    161,987.60x = 31,751,392,821.36
  5. Step 5: Solve for x
    x = 31,751,392,821.36/161,987.60
  6. Step 6: Final answer
    x = 196,011.26

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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.