Home / 166,981.50-230,435.28-99,913.50

Finding the Fourth Proportional to 166,981.50, 230,435.28 and 99,913.50

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Solution

The fourth proportional to 166,981.50, 230,435.28 and 99,913.50 is: 137,881.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,981.50 : 230,435.28 = 99,913.50 : x
  2. Step 2: Convert to fraction form
    166,981.50/230,435.28 = 99,913.50/x
  3. Step 3: Cross multiply
    166,981.50x = 230,435.28 × 99,913.50
  4. Step 4: Simplify right side
    166,981.50x = 23,023,595,348.28
  5. Step 5: Solve for x
    x = 23,023,595,348.28/166,981.50
  6. Step 6: Final answer
    x = 137,881.11

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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.