Home / 105,215.10-145,159.11-62,185.56

Finding the Fourth Proportional to 105,215.10, 145,159.11 and 62,185.56

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Solution

The fourth proportional to 105,215.10, 145,159.11 and 62,185.56 is: 85,793.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,215.10 : 145,159.11 = 62,185.56 : x
  2. Step 2: Convert to fraction form
    105,215.10/145,159.11 = 62,185.56/x
  3. Step 3: Cross multiply
    105,215.10x = 145,159.11 × 62,185.56
  4. Step 4: Simplify right side
    105,215.10x = 9,026,800,544.45
  5. Step 5: Solve for x
    x = 9,026,800,544.45/105,215.10
  6. Step 6: Final answer
    x = 85,793.77

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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.