Home / 140,281.74-193,588.79-76,619.68

Finding the Fourth Proportional to 140,281.74, 193,588.79 and 76,619.68

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Solution

The fourth proportional to 140,281.74, 193,588.79 and 76,619.68 is: 105,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,281.74 : 193,588.79 = 76,619.68 : x
  2. Step 2: Convert to fraction form
    140,281.74/193,588.79 = 76,619.68/x
  3. Step 3: Cross multiply
    140,281.74x = 193,588.79 × 76,619.68
  4. Step 4: Simplify right side
    140,281.74x = 14,832,711,816.91
  5. Step 5: Solve for x
    x = 14,832,711,816.91/140,281.74
  6. Step 6: Final answer
    x = 105,735.16

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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.