Home / 212,723.22-293,572.56-129,972.63

Finding the Fourth Proportional to 212,723.22, 293,572.56 and 129,972.63

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Solution

The fourth proportional to 212,723.22, 293,572.56 and 129,972.63 is: 179,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,723.22 : 293,572.56 = 129,972.63 : x
  2. Step 2: Convert to fraction form
    212,723.22/293,572.56 = 129,972.63/x
  3. Step 3: Cross multiply
    212,723.22x = 293,572.56 × 129,972.63
  4. Step 4: Simplify right side
    212,723.22x = 38,156,397,719.03
  5. Step 5: Solve for x
    x = 38,156,397,719.03/212,723.22
  6. Step 6: Final answer
    x = 179,371.10

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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.