Home / 109,511.91-151,133.49-64,173.38

Finding the Fourth Proportional to 109,511.91, 151,133.49 and 64,173.38

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Solution

The fourth proportional to 109,511.91, 151,133.49 and 64,173.38 is: 88,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,511.91 : 151,133.49 = 64,173.38 : x
  2. Step 2: Convert to fraction form
    109,511.91/151,133.49 = 64,173.38/x
  3. Step 3: Cross multiply
    109,511.91x = 151,133.49 × 64,173.38
  4. Step 4: Simplify right side
    109,511.91x = 9,698,746,128.83
  5. Step 5: Solve for x
    x = 9,698,746,128.83/109,511.91
  6. Step 6: Final answer
    x = 88,563.39

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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.