Home / 156,663.69-216,196.17-85,043.76

Finding the Fourth Proportional to 156,663.69, 216,196.17 and 85,043.76

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Solution

The fourth proportional to 156,663.69, 216,196.17 and 85,043.76 is: 117,360.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,663.69 : 216,196.17 = 85,043.76 : x
  2. Step 2: Convert to fraction form
    156,663.69/216,196.17 = 85,043.76/x
  3. Step 3: Cross multiply
    156,663.69x = 216,196.17 × 85,043.76
  4. Step 4: Simplify right side
    156,663.69x = 18,386,135,194.40
  5. Step 5: Solve for x
    x = 18,386,135,194.40/156,663.69
  6. Step 6: Final answer
    x = 117,360.54

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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.