Home / 104,429.76-144,112.56-56,680.32

Finding the Fourth Proportional to 104,429.76, 144,112.56 and 56,680.32

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Solution

The fourth proportional to 104,429.76, 144,112.56 and 56,680.32 is: 78,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,429.76 : 144,112.56 = 56,680.32 : x
  2. Step 2: Convert to fraction form
    104,429.76/144,112.56 = 56,680.32/x
  3. Step 3: Cross multiply
    104,429.76x = 144,112.56 × 56,680.32
  4. Step 4: Simplify right side
    104,429.76x = 8,168,346,016.82
  5. Step 5: Solve for x
    x = 8,168,346,016.82/104,429.76
  6. Step 6: Final answer
    x = 78,218.57

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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.