Home / 105,788.72-145,995.05-58,042.19

Finding the Fourth Proportional to 105,788.72, 145,995.05 and 58,042.19

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Solution

The fourth proportional to 105,788.72, 145,995.05 and 58,042.19 is: 80,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,788.72 : 145,995.05 = 58,042.19 : x
  2. Step 2: Convert to fraction form
    105,788.72/145,995.05 = 58,042.19/x
  3. Step 3: Cross multiply
    105,788.72x = 145,995.05 × 58,042.19
  4. Step 4: Simplify right side
    105,788.72x = 8,473,872,140.95
  5. Step 5: Solve for x
    x = 8,473,872,140.95/105,788.72
  6. Step 6: Final answer
    x = 80,101.85

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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.