Home / 118,226.10-163,149.75-64,509.78

Finding the Fourth Proportional to 118,226.10, 163,149.75 and 64,509.78

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Solution

The fourth proportional to 118,226.10, 163,149.75 and 64,509.78 is: 89,022.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,226.10 : 163,149.75 = 64,509.78 : x
  2. Step 2: Convert to fraction form
    118,226.10/163,149.75 = 64,509.78/x
  3. Step 3: Cross multiply
    118,226.10x = 163,149.75 × 64,509.78
  4. Step 4: Simplify right side
    118,226.10x = 10,524,754,479.56
  5. Step 5: Solve for x
    x = 10,524,754,479.56/118,226.10
  6. Step 6: Final answer
    x = 89,022.26

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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.