Home / 156,884.37-216,502.11-85,264.39

Finding the Fourth Proportional to 156,884.37, 216,502.11 and 85,264.39

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Solution

The fourth proportional to 156,884.37, 216,502.11 and 85,264.39 is: 117,665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,884.37 : 216,502.11 = 85,264.39 : x
  2. Step 2: Convert to fraction form
    156,884.37/216,502.11 = 85,264.39/x
  3. Step 3: Cross multiply
    156,884.37x = 216,502.11 × 85,264.39
  4. Step 4: Simplify right side
    156,884.37x = 18,459,920,342.86
  5. Step 5: Solve for x
    x = 18,459,920,342.86/156,884.37
  6. Step 6: Final answer
    x = 117,665.77

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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.