Home / 112,395.72-155,110.62-64,649.04

Finding the Fourth Proportional to 112,395.72, 155,110.62 and 64,649.04

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Solution

The fourth proportional to 112,395.72, 155,110.62 and 64,649.04 is: 89,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,395.72 : 155,110.62 = 64,649.04 : x
  2. Step 2: Convert to fraction form
    112,395.72/155,110.62 = 64,649.04/x
  3. Step 3: Cross multiply
    112,395.72x = 155,110.62 × 64,649.04
  4. Step 4: Simplify right side
    112,395.72x = 10,027,752,676.80
  5. Step 5: Solve for x
    x = 10,027,752,676.80/112,395.72
  6. Step 6: Final answer
    x = 89,218.28

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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.