Home / 140,056.50-193,280.60-76,396.57

Finding the Fourth Proportional to 140,056.50, 193,280.60 and 76,396.57

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Solution

The fourth proportional to 140,056.50, 193,280.60 and 76,396.57 is: 105,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,056.50 : 193,280.60 = 76,396.57 : x
  2. Step 2: Convert to fraction form
    140,056.50/193,280.60 = 76,396.57/x
  3. Step 3: Cross multiply
    140,056.50x = 193,280.60 × 76,396.57
  4. Step 4: Simplify right side
    140,056.50x = 14,765,974,887.54
  5. Step 5: Solve for x
    x = 14,765,974,887.54/140,056.50
  6. Step 6: Final answer
    x = 105,428.70

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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.