Home / 140,387.80-193,735.18-76,725.58

Finding the Fourth Proportional to 140,387.80, 193,735.18 and 76,725.58

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Solution

The fourth proportional to 140,387.80, 193,735.18 and 76,725.58 is: 105,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,387.80 : 193,735.18 = 76,725.58 : x
  2. Step 2: Convert to fraction form
    140,387.80/193,735.18 = 76,725.58/x
  3. Step 3: Cross multiply
    140,387.80x = 193,735.18 × 76,725.58
  4. Step 4: Simplify right side
    140,387.80x = 14,864,444,051.90
  5. Step 5: Solve for x
    x = 14,864,444,051.90/140,387.80
  6. Step 6: Final answer
    x = 105,881.31

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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.