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Finding the Fourth Proportional to 128,510.84, 192,718.38 and 44,247.44

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Solution

The fourth proportional to 128,510.84, 192,718.38 and 44,247.44 is: 66,354.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,510.84 : 192,718.38 = 44,247.44 : x
  2. Step 2: Convert to fraction form
    128,510.84/192,718.38 = 44,247.44/x
  3. Step 3: Cross multiply
    128,510.84x = 192,718.38 × 44,247.44
  4. Step 4: Simplify right side
    128,510.84x = 8,527,294,955.95
  5. Step 5: Solve for x
    x = 8,527,294,955.95/128,510.84
  6. Step 6: Final answer
    x = 66,354.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.