Home / 128,772.28-193,111.10-44,510.84

Finding the Fourth Proportional to 128,772.28, 193,111.10 and 44,510.84

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Solution

The fourth proportional to 128,772.28, 193,111.10 and 44,510.84 is: 66,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,772.28 : 193,111.10 = 44,510.84 : x
  2. Step 2: Convert to fraction form
    128,772.28/193,111.10 = 44,510.84/x
  3. Step 3: Cross multiply
    128,772.28x = 193,111.10 × 44,510.84
  4. Step 4: Simplify right side
    128,772.28x = 8,595,537,274.32
  5. Step 5: Solve for x
    x = 8,595,537,274.32/128,772.28
  6. Step 6: Final answer
    x = 66,749.90

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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.