Home / 156,883.18-216,500.47-85,263.21

Finding the Fourth Proportional to 156,883.18, 216,500.47 and 85,263.21

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Solution

The fourth proportional to 156,883.18, 216,500.47 and 85,263.21 is: 117,664.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,883.18 : 216,500.47 = 85,263.21 : x
  2. Step 2: Convert to fraction form
    156,883.18/216,500.47 = 85,263.21/x
  3. Step 3: Cross multiply
    156,883.18x = 216,500.47 × 85,263.21
  4. Step 4: Simplify right side
    156,883.18x = 18,459,523,956.21
  5. Step 5: Solve for x
    x = 18,459,523,956.21/156,883.18
  6. Step 6: Final answer
    x = 117,664.14

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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.