Home / 125,054.38-172,575.05-68,465.76

Finding the Fourth Proportional to 125,054.38, 172,575.05 and 68,465.76

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Solution

The fourth proportional to 125,054.38, 172,575.05 and 68,465.76 is: 94,482.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,054.38 : 172,575.05 = 68,465.76 : x
  2. Step 2: Convert to fraction form
    125,054.38/172,575.05 = 68,465.76/x
  3. Step 3: Cross multiply
    125,054.38x = 172,575.05 × 68,465.76
  4. Step 4: Simplify right side
    125,054.38x = 11,815,481,955.29
  5. Step 5: Solve for x
    x = 11,815,481,955.29/125,054.38
  6. Step 6: Final answer
    x = 94,482.75

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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.