Home / 212,689.56-293,509.21-120,808.20

Finding the Fourth Proportional to 212,689.56, 293,509.21 and 120,808.20

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Solution

The fourth proportional to 212,689.56, 293,509.21 and 120,808.20 is: 166,713.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,689.56 : 293,509.21 = 120,808.20 : x
  2. Step 2: Convert to fraction form
    212,689.56/293,509.21 = 120,808.20/x
  3. Step 3: Cross multiply
    212,689.56x = 293,509.21 × 120,808.20
  4. Step 4: Simplify right side
    212,689.56x = 35,458,319,343.52
  5. Step 5: Solve for x
    x = 35,458,319,343.52/212,689.56
  6. Step 6: Final answer
    x = 166,713.96

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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.