Home / 116,772.18-161,148.95-65,785.47

Finding the Fourth Proportional to 116,772.18, 161,148.95 and 65,785.47

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Solution

The fourth proportional to 116,772.18, 161,148.95 and 65,785.47 is: 90,785.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,772.18 : 161,148.95 = 65,785.47 : x
  2. Step 2: Convert to fraction form
    116,772.18/161,148.95 = 65,785.47/x
  3. Step 3: Cross multiply
    116,772.18x = 161,148.95 × 65,785.47
  4. Step 4: Simplify right side
    116,772.18x = 10,601,259,415.76
  5. Step 5: Solve for x
    x = 10,601,259,415.76/116,772.18
  6. Step 6: Final answer
    x = 90,785.83

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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.