Home / 156,635.34-216,156.95-85,015.37

Finding the Fourth Proportional to 156,635.34, 216,156.95 and 85,015.37

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Solution

The fourth proportional to 156,635.34, 216,156.95 and 85,015.37 is: 117,321.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,635.34 : 216,156.95 = 85,015.37 : x
  2. Step 2: Convert to fraction form
    156,635.34/216,156.95 = 85,015.37/x
  3. Step 3: Cross multiply
    156,635.34x = 216,156.95 × 85,015.37
  4. Step 4: Simplify right side
    156,635.34x = 18,376,663,082.32
  5. Step 5: Solve for x
    x = 18,376,663,082.32/156,635.34
  6. Step 6: Final answer
    x = 117,321.31

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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.