Home / 156,720.49-216,268.23-85,098.91

Finding the Fourth Proportional to 156,720.49, 216,268.23 and 85,098.91

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Solution

The fourth proportional to 156,720.49, 216,268.23 and 85,098.91 is: 117,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,720.49 : 216,268.23 = 85,098.91 : x
  2. Step 2: Convert to fraction form
    156,720.49/216,268.23 = 85,098.91/x
  3. Step 3: Cross multiply
    156,720.49x = 216,268.23 × 85,098.91
  4. Step 4: Simplify right side
    156,720.49x = 18,404,190,640.63
  5. Step 5: Solve for x
    x = 18,404,190,640.63/156,720.49
  6. Step 6: Final answer
    x = 117,433.21

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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.