Home / 105,881.12-146,109.36-58,134.24

Finding the Fourth Proportional to 105,881.12, 146,109.36 and 58,134.24

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Solution

The fourth proportional to 105,881.12, 146,109.36 and 58,134.24 is: 80,221.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,881.12 : 146,109.36 = 58,134.24 : x
  2. Step 2: Convert to fraction form
    105,881.12/146,109.36 = 58,134.24/x
  3. Step 3: Cross multiply
    105,881.12x = 146,109.36 × 58,134.24
  4. Step 4: Simplify right side
    105,881.12x = 8,493,956,600.49
  5. Step 5: Solve for x
    x = 8,493,956,600.49/105,881.12
  6. Step 6: Final answer
    x = 80,221.64

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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.