Home / 125,206.74-172,754.46-74,231.40

Finding the Fourth Proportional to 125,206.74, 172,754.46 and 74,231.40

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Solution

The fourth proportional to 125,206.74, 172,754.46 and 74,231.40 is: 102,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,206.74 : 172,754.46 = 74,231.40 : x
  2. Step 2: Convert to fraction form
    125,206.74/172,754.46 = 74,231.40/x
  3. Step 3: Cross multiply
    125,206.74x = 172,754.46 × 74,231.40
  4. Step 4: Simplify right side
    125,206.74x = 12,823,805,422.04
  5. Step 5: Solve for x
    x = 12,823,805,422.04/125,206.74
  6. Step 6: Final answer
    x = 102,421.05

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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.