Home / 212,434.11-293,162.09-115,640.93

Finding the Fourth Proportional to 212,434.11, 293,162.09 and 115,640.93

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Solution

The fourth proportional to 212,434.11, 293,162.09 and 115,640.93 is: 159,586.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,434.11 : 293,162.09 = 115,640.93 : x
  2. Step 2: Convert to fraction form
    212,434.11/293,162.09 = 115,640.93/x
  3. Step 3: Cross multiply
    212,434.11x = 293,162.09 × 115,640.93
  4. Step 4: Simplify right side
    212,434.11x = 33,901,536,883.04
  5. Step 5: Solve for x
    x = 33,901,536,883.04/212,434.11
  6. Step 6: Final answer
    x = 159,586.13

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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.