Home / 156,635.07-216,156.59-85,015.11

Finding the Fourth Proportional to 156,635.07, 216,156.59 and 85,015.11

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Solution

The fourth proportional to 156,635.07, 216,156.59 and 85,015.11 is: 117,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,635.07 : 216,156.59 = 85,015.11 : x
  2. Step 2: Convert to fraction form
    156,635.07/216,156.59 = 85,015.11/x
  3. Step 3: Cross multiply
    156,635.07x = 216,156.59 × 85,015.11
  4. Step 4: Simplify right side
    156,635.07x = 18,376,575,340.99
  5. Step 5: Solve for x
    x = 18,376,575,340.99/156,635.07
  6. Step 6: Final answer
    x = 117,320.95

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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.