Home / 140,056.62-193,278.09-76,394.40

Finding the Fourth Proportional to 140,056.62, 193,278.09 and 76,394.40

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Solution

The fourth proportional to 140,056.62, 193,278.09 and 76,394.40 is: 105,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,056.62 : 193,278.09 = 76,394.40 : x
  2. Step 2: Convert to fraction form
    140,056.62/193,278.09 = 76,394.40/x
  3. Step 3: Cross multiply
    140,056.62x = 193,278.09 × 76,394.40
  4. Step 4: Simplify right side
    140,056.62x = 14,765,363,718.70
  5. Step 5: Solve for x
    x = 14,765,363,718.70/140,056.62
  6. Step 6: Final answer
    x = 105,424.25

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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.