Home / 156,663.45-216,195.66-85,043.46

Finding the Fourth Proportional to 156,663.45, 216,195.66 and 85,043.46

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Solution

The fourth proportional to 156,663.45, 216,195.66 and 85,043.46 is: 117,360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,663.45 : 216,195.66 = 85,043.46 : x
  2. Step 2: Convert to fraction form
    156,663.45/216,195.66 = 85,043.46/x
  3. Step 3: Cross multiply
    156,663.45x = 216,195.66 × 85,043.46
  4. Step 4: Simplify right side
    156,663.45x = 18,386,026,963.38
  5. Step 5: Solve for x
    x = 18,386,026,963.38/156,663.45
  6. Step 6: Final answer
    x = 117,360.03

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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.