Home / 117,109.26-161,703.95-108,153.50

Finding the Fourth Proportional to 117,109.26, 161,703.95 and 108,153.50

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Solution

The fourth proportional to 117,109.26, 161,703.95 and 108,153.50 is: 149,337.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,109.26 : 161,703.95 = 108,153.50 : x
  2. Step 2: Convert to fraction form
    117,109.26/161,703.95 = 108,153.50/x
  3. Step 3: Cross multiply
    117,109.26x = 161,703.95 × 108,153.50
  4. Step 4: Simplify right side
    117,109.26x = 17,488,846,807.04
  5. Step 5: Solve for x
    x = 17,488,846,807.04/117,109.26
  6. Step 6: Final answer
    x = 149,337.86

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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.