Home / 117,155.52-161,673.66-63,439.20

Finding the Fourth Proportional to 117,155.52, 161,673.66 and 63,439.20

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Solution

The fourth proportional to 117,155.52, 161,673.66 and 63,439.20 is: 87,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,155.52 : 161,673.66 = 63,439.20 : x
  2. Step 2: Convert to fraction form
    117,155.52/161,673.66 = 63,439.20/x
  3. Step 3: Cross multiply
    117,155.52x = 161,673.66 × 63,439.20
  4. Step 4: Simplify right side
    117,155.52x = 10,256,447,651.47
  5. Step 5: Solve for x
    x = 10,256,447,651.47/117,155.52
  6. Step 6: Final answer
    x = 87,545.58

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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.