Home / 142,094.80-212,861.40-92,209.60

Finding the Fourth Proportional to 142,094.80, 212,861.40 and 92,209.60

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Solution

The fourth proportional to 142,094.80, 212,861.40 and 92,209.60 is: 138,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,094.80 : 212,861.40 = 92,209.60 : x
  2. Step 2: Convert to fraction form
    142,094.80/212,861.40 = 92,209.60/x
  3. Step 3: Cross multiply
    142,094.80x = 212,861.40 × 92,209.60
  4. Step 4: Simplify right side
    142,094.80x = 19,627,864,549.44
  5. Step 5: Solve for x
    x = 19,627,864,549.44/142,094.80
  6. Step 6: Final answer
    x = 138,132.18

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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.