Home / 104,032.88-143,565.30-58,720.40

Finding the Fourth Proportional to 104,032.88, 143,565.30 and 58,720.40

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Solution

The fourth proportional to 104,032.88, 143,565.30 and 58,720.40 is: 81,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,032.88 : 143,565.30 = 58,720.40 : x
  2. Step 2: Convert to fraction form
    104,032.88/143,565.30 = 58,720.40/x
  3. Step 3: Cross multiply
    104,032.88x = 143,565.30 × 58,720.40
  4. Step 4: Simplify right side
    104,032.88x = 8,430,211,842.12
  5. Step 5: Solve for x
    x = 8,430,211,842.12/104,032.88
  6. Step 6: Final answer
    x = 81,034.11

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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.