Home / 125,008.12-172,594.74-74,037.25

Finding the Fourth Proportional to 125,008.12, 172,594.74 and 74,037.25

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Solution

The fourth proportional to 125,008.12, 172,594.74 and 74,037.25 is: 102,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,008.12 : 172,594.74 = 74,037.25 : x
  2. Step 2: Convert to fraction form
    125,008.12/172,594.74 = 74,037.25/x
  3. Step 3: Cross multiply
    125,008.12x = 172,594.74 × 74,037.25
  4. Step 4: Simplify right side
    125,008.12x = 12,778,439,914.07
  5. Step 5: Solve for x
    x = 12,778,439,914.07/125,008.12
  6. Step 6: Final answer
    x = 102,220.88

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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.