Home / 156,772.73-216,342.78-85,151.18

Finding the Fourth Proportional to 156,772.73, 216,342.78 and 85,151.18

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Solution

The fourth proportional to 156,772.73, 216,342.78 and 85,151.18 is: 117,506.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,772.73 : 216,342.78 = 85,151.18 : x
  2. Step 2: Convert to fraction form
    156,772.73/216,342.78 = 85,151.18/x
  3. Step 3: Cross multiply
    156,772.73x = 216,342.78 × 85,151.18
  4. Step 4: Simplify right side
    156,772.73x = 18,421,843,001.48
  5. Step 5: Solve for x
    x = 18,421,843,001.48/156,772.73
  6. Step 6: Final answer
    x = 117,506.68

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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.