Home / 105,080.25-145,010.76-67,354.59

Finding the Fourth Proportional to 105,080.25, 145,010.76 and 67,354.59

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Solution

The fourth proportional to 105,080.25, 145,010.76 and 67,354.59 is: 92,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,080.25 : 145,010.76 = 67,354.59 : x
  2. Step 2: Convert to fraction form
    105,080.25/145,010.76 = 67,354.59/x
  3. Step 3: Cross multiply
    105,080.25x = 145,010.76 × 67,354.59
  4. Step 4: Simplify right side
    105,080.25x = 9,767,140,285.39
  5. Step 5: Solve for x
    x = 9,767,140,285.39/105,080.25
  6. Step 6: Final answer
    x = 92,949.34

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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.