Home / 191,283.40-264,021.78-134,720.20

Finding the Fourth Proportional to 191,283.40, 264,021.78 and 134,720.20

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Solution

The fourth proportional to 191,283.40, 264,021.78 and 134,720.20 is: 185,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,283.40 : 264,021.78 = 134,720.20 : x
  2. Step 2: Convert to fraction form
    191,283.40/264,021.78 = 134,720.20/x
  3. Step 3: Cross multiply
    191,283.40x = 264,021.78 × 134,720.20
  4. Step 4: Simplify right side
    191,283.40x = 35,569,067,005.96
  5. Step 5: Solve for x
    x = 35,569,067,005.96/191,283.40
  6. Step 6: Final answer
    x = 185,949.58

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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.