Home / 156,968.56-216,619.32-85,349.07

Finding the Fourth Proportional to 156,968.56, 216,619.32 and 85,349.07

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Solution

The fourth proportional to 156,968.56, 216,619.32 and 85,349.07 is: 117,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.56 : 216,619.32 = 85,349.07 : x
  2. Step 2: Convert to fraction form
    156,968.56/216,619.32 = 85,349.07/x
  3. Step 3: Cross multiply
    156,968.56x = 216,619.32 × 85,349.07
  4. Step 4: Simplify right side
    156,968.56x = 18,488,257,506.03
  5. Step 5: Solve for x
    x = 18,488,257,506.03/156,968.56
  6. Step 6: Final answer
    x = 117,783.19

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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.