Home / 212,609.23-318,921.14-112,634.17

Finding the Fourth Proportional to 212,609.23, 318,921.14 and 112,634.17

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Solution

The fourth proportional to 212,609.23, 318,921.14 and 112,634.17 is: 168,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,609.23 : 318,921.14 = 112,634.17 : x
  2. Step 2: Convert to fraction form
    212,609.23/318,921.14 = 112,634.17/x
  3. Step 3: Cross multiply
    212,609.23x = 318,921.14 × 112,634.17
  4. Step 4: Simplify right side
    212,609.23x = 35,921,417,899.35
  5. Step 5: Solve for x
    x = 35,921,417,899.35/212,609.23
  6. Step 6: Final answer
    x = 168,955.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.