Home / 140,143.14-193,402.20-76,484.40

Finding the Fourth Proportional to 140,143.14, 193,402.20 and 76,484.40

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Solution

The fourth proportional to 140,143.14, 193,402.20 and 76,484.40 is: 105,551.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,143.14 : 193,402.20 = 76,484.40 : x
  2. Step 2: Convert to fraction form
    140,143.14/193,402.20 = 76,484.40/x
  3. Step 3: Cross multiply
    140,143.14x = 193,402.20 × 76,484.40
  4. Step 4: Simplify right side
    140,143.14x = 14,792,251,225.68
  5. Step 5: Solve for x
    x = 14,792,251,225.68/140,143.14
  6. Step 6: Final answer
    x = 105,551.02

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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.