Home / 112,785.28-169,178.15-46,213.45

Finding the Fourth Proportional to 112,785.28, 169,178.15 and 46,213.45

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Solution

The fourth proportional to 112,785.28, 169,178.15 and 46,213.45 is: 69,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,785.28 : 169,178.15 = 46,213.45 : x
  2. Step 2: Convert to fraction form
    112,785.28/169,178.15 = 46,213.45/x
  3. Step 3: Cross multiply
    112,785.28x = 169,178.15 × 46,213.45
  4. Step 4: Simplify right side
    112,785.28x = 7,818,305,976.12
  5. Step 5: Solve for x
    x = 7,818,305,976.12/112,785.28
  6. Step 6: Final answer
    x = 69,320.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.