Home / 156,634.72-216,156.09-85,014.76

Finding the Fourth Proportional to 156,634.72, 216,156.09 and 85,014.76

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Solution

The fourth proportional to 156,634.72, 216,156.09 and 85,014.76 is: 117,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,634.72 : 216,156.09 = 85,014.76 : x
  2. Step 2: Convert to fraction form
    156,634.72/216,156.09 = 85,014.76/x
  3. Step 3: Cross multiply
    156,634.72x = 216,156.09 × 85,014.76
  4. Step 4: Simplify right side
    156,634.72x = 18,376,457,033.11
  5. Step 5: Solve for x
    x = 18,376,457,033.11/156,634.72
  6. Step 6: Final answer
    x = 117,320.46

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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.