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Finding the Fourth Proportional to 142,094.80, 195,970.44 and 85,495.60

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Solution

The fourth proportional to 142,094.80, 195,970.44 and 85,495.60 is: 117,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,094.80 : 195,970.44 = 85,495.60 : x
  2. Step 2: Convert to fraction form
    142,094.80/195,970.44 = 85,495.60/x
  3. Step 3: Cross multiply
    142,094.80x = 195,970.44 × 85,495.60
  4. Step 4: Simplify right side
    142,094.80x = 16,754,610,350.06
  5. Step 5: Solve for x
    x = 16,754,610,350.06/142,094.80
  6. Step 6: Final answer
    x = 117,911.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.