Home / 212,780.11-293,627.70-115,981.83

Finding the Fourth Proportional to 212,780.11, 293,627.70 and 115,981.83

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Solution

The fourth proportional to 212,780.11, 293,627.70 and 115,981.83 is: 160,050.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,780.11 : 293,627.70 = 115,981.83 : x
  2. Step 2: Convert to fraction form
    212,780.11/293,627.70 = 115,981.83/x
  3. Step 3: Cross multiply
    212,780.11x = 293,627.70 × 115,981.83
  4. Step 4: Simplify right side
    212,780.11x = 34,055,479,299.82
  5. Step 5: Solve for x
    x = 34,055,479,299.82/212,780.11
  6. Step 6: Final answer
    x = 160,050.11

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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.