Home / 212,780.12-293,756.48-141,257.92

Finding the Fourth Proportional to 212,780.12, 293,756.48 and 141,257.92

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Solution

The fourth proportional to 212,780.12, 293,756.48 and 141,257.92 is: 195,015.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,780.12 : 293,756.48 = 141,257.92 : x
  2. Step 2: Convert to fraction form
    212,780.12/293,756.48 = 141,257.92/x
  3. Step 3: Cross multiply
    212,780.12x = 293,756.48 × 141,257.92
  4. Step 4: Simplify right side
    212,780.12x = 41,495,429,351.32
  5. Step 5: Solve for x
    x = 41,495,429,351.32/212,780.12
  6. Step 6: Final answer
    x = 195,015.54

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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.