Home / 212,421.80-293,118.03-125,201.20

Finding the Fourth Proportional to 212,421.80, 293,118.03 and 125,201.20

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Solution

The fourth proportional to 212,421.80, 293,118.03 and 125,201.20 is: 172,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,421.80 : 293,118.03 = 125,201.20 : x
  2. Step 2: Convert to fraction form
    212,421.80/293,118.03 = 125,201.20/x
  3. Step 3: Cross multiply
    212,421.80x = 293,118.03 × 125,201.20
  4. Step 4: Simplify right side
    212,421.80x = 36,698,729,097.64
  5. Step 5: Solve for x
    x = 36,698,729,097.64/212,421.80
  6. Step 6: Final answer
    x = 172,763.48

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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.