Home / 156,663.62-216,196.08-85,043.70

Finding the Fourth Proportional to 156,663.62, 216,196.08 and 85,043.70

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Solution

The fourth proportional to 156,663.62, 216,196.08 and 85,043.70 is: 117,360.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,663.62 : 216,196.08 = 85,043.70 : x
  2. Step 2: Convert to fraction form
    156,663.62/216,196.08 = 85,043.70/x
  3. Step 3: Cross multiply
    156,663.62x = 216,196.08 × 85,043.70
  4. Step 4: Simplify right side
    156,663.62x = 18,386,114,568.70
  5. Step 5: Solve for x
    x = 18,386,114,568.70/156,663.62
  6. Step 6: Final answer
    x = 117,360.46

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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.