Home / 156,915.06-216,538.18-85,293.24

Finding the Fourth Proportional to 156,915.06, 216,538.18 and 85,293.24

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Solution

The fourth proportional to 156,915.06, 216,538.18 and 85,293.24 is: 117,702.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,915.06 : 216,538.18 = 85,293.24 : x
  2. Step 2: Convert to fraction form
    156,915.06/216,538.18 = 85,293.24/x
  3. Step 3: Cross multiply
    156,915.06x = 216,538.18 × 85,293.24
  4. Step 4: Simplify right side
    156,915.06x = 18,469,242,955.90
  5. Step 5: Solve for x
    x = 18,469,242,955.90/156,915.06
  6. Step 6: Final answer
    x = 117,702.17

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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.