Home / 125,218.03-172,775.41-74,208.32

Finding the Fourth Proportional to 125,218.03, 172,775.41 and 74,208.32

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Solution

The fourth proportional to 125,218.03, 172,775.41 and 74,208.32 is: 102,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,218.03 : 172,775.41 = 74,208.32 : x
  2. Step 2: Convert to fraction form
    125,218.03/172,775.41 = 74,208.32/x
  3. Step 3: Cross multiply
    125,218.03x = 172,775.41 × 74,208.32
  4. Step 4: Simplify right side
    125,218.03x = 12,821,372,913.41
  5. Step 5: Solve for x
    x = 12,821,372,913.41/125,218.03
  6. Step 6: Final answer
    x = 102,392.39

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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.