Home / 104,143.64-143,718.30-56,397.02

Finding the Fourth Proportional to 104,143.64, 143,718.30 and 56,397.02

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Solution

The fourth proportional to 104,143.64, 143,718.30 and 56,397.02 is: 77,827.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,143.64 : 143,718.30 = 56,397.02 : x
  2. Step 2: Convert to fraction form
    104,143.64/143,718.30 = 56,397.02/x
  3. Step 3: Cross multiply
    104,143.64x = 143,718.30 × 56,397.02
  4. Step 4: Simplify right side
    104,143.64x = 8,105,283,120.87
  5. Step 5: Solve for x
    x = 8,105,283,120.87/104,143.64
  6. Step 6: Final answer
    x = 77,827.93

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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.