Home / 156,969.08-216,611.36-85,349.16

Finding the Fourth Proportional to 156,969.08, 216,611.36 and 85,349.16

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Solution

The fourth proportional to 156,969.08, 216,611.36 and 85,349.16 is: 117,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.08 : 216,611.36 = 85,349.16 : x
  2. Step 2: Convert to fraction form
    156,969.08/216,611.36 = 85,349.16/x
  3. Step 3: Cross multiply
    156,969.08x = 216,611.36 × 85,349.16
  4. Step 4: Simplify right side
    156,969.08x = 18,487,597,622.46
  5. Step 5: Solve for x
    x = 18,487,597,622.46/156,969.08
  6. Step 6: Final answer
    x = 117,778.59

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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.