Home / 140,145.96-193,314.86-99,872.60

Finding the Fourth Proportional to 140,145.96, 193,314.86 and 99,872.60

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Solution

The fourth proportional to 140,145.96, 193,314.86 and 99,872.60 is: 137,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,145.96 : 193,314.86 = 99,872.60 : x
  2. Step 2: Convert to fraction form
    140,145.96/193,314.86 = 99,872.60/x
  3. Step 3: Cross multiply
    140,145.96x = 193,314.86 × 99,872.60
  4. Step 4: Simplify right side
    140,145.96x = 19,306,857,686.84
  5. Step 5: Solve for x
    x = 19,306,857,686.84/140,145.96
  6. Step 6: Final answer
    x = 137,762.50

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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.