Home / 156,889.44-216,508.77-85,269.51

Finding the Fourth Proportional to 156,889.44, 216,508.77 and 85,269.51

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Solution

The fourth proportional to 156,889.44, 216,508.77 and 85,269.51 is: 117,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,889.44 : 216,508.77 = 85,269.51 : x
  2. Step 2: Convert to fraction form
    156,889.44/216,508.77 = 85,269.51/x
  3. Step 3: Cross multiply
    156,889.44x = 216,508.77 × 85,269.51
  4. Step 4: Simplify right side
    156,889.44x = 18,461,596,728.60
  5. Step 5: Solve for x
    x = 18,461,596,728.60/156,889.44
  6. Step 6: Final answer
    x = 117,672.65

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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.