Home / 117,007.20-161,437.86-74,530.80

Finding the Fourth Proportional to 117,007.20, 161,437.86 and 74,530.80

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Solution

The fourth proportional to 117,007.20, 161,437.86 and 74,530.80 is: 102,832.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,007.20 : 161,437.86 = 74,530.80 : x
  2. Step 2: Convert to fraction form
    117,007.20/161,437.86 = 74,530.80/x
  3. Step 3: Cross multiply
    117,007.20x = 161,437.86 × 74,530.80
  4. Step 4: Simplify right side
    117,007.20x = 12,032,092,856.09
  5. Step 5: Solve for x
    x = 12,032,092,856.09/117,007.20
  6. Step 6: Final answer
    x = 102,832.07

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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.