Home / 156,012.57-234,017.64-81,094.05

Finding the Fourth Proportional to 156,012.57, 234,017.64 and 81,094.05

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Solution

The fourth proportional to 156,012.57, 234,017.64 and 81,094.05 is: 121,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,012.57 : 234,017.64 = 81,094.05 : x
  2. Step 2: Convert to fraction form
    156,012.57/234,017.64 = 81,094.05/x
  3. Step 3: Cross multiply
    156,012.57x = 234,017.64 × 81,094.05
  4. Step 4: Simplify right side
    156,012.57x = 18,977,438,199.04
  5. Step 5: Solve for x
    x = 18,977,438,199.04/156,012.57
  6. Step 6: Final answer
    x = 121,640.44

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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.