Home / 104,275.43-143,899.74-56,528.78

Finding the Fourth Proportional to 104,275.43, 143,899.74 and 56,528.78

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Solution

The fourth proportional to 104,275.43, 143,899.74 and 56,528.78 is: 78,009.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,275.43 : 143,899.74 = 56,528.78 : x
  2. Step 2: Convert to fraction form
    104,275.43/143,899.74 = 56,528.78/x
  3. Step 3: Cross multiply
    104,275.43x = 143,899.74 × 56,528.78
  4. Step 4: Simplify right side
    104,275.43x = 8,134,476,025.02
  5. Step 5: Solve for x
    x = 8,134,476,025.02/104,275.43
  6. Step 6: Final answer
    x = 78,009.52

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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.