Home / 212,203.90-318,238.32-70,022.66

Finding the Fourth Proportional to 212,203.90, 318,238.32 and 70,022.66

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Solution

The fourth proportional to 212,203.90, 318,238.32 and 70,022.66 is: 105,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,203.90 : 318,238.32 = 70,022.66 : x
  2. Step 2: Convert to fraction form
    212,203.90/318,238.32 = 70,022.66/x
  3. Step 3: Cross multiply
    212,203.90x = 318,238.32 × 70,022.66
  4. Step 4: Simplify right side
    212,203.90x = 22,283,894,475.93
  5. Step 5: Solve for x
    x = 22,283,894,475.93/212,203.90
  6. Step 6: Final answer
    x = 105,011.71

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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.