Home / 212,845.60-293,761.92-128,009.44

Finding the Fourth Proportional to 212,845.60, 293,761.92 and 128,009.44

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Solution

The fourth proportional to 212,845.60, 293,761.92 and 128,009.44 is: 176,674.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,845.60 : 293,761.92 = 128,009.44 : x
  2. Step 2: Convert to fraction form
    212,845.60/293,761.92 = 128,009.44/x
  3. Step 3: Cross multiply
    212,845.60x = 293,761.92 × 128,009.44
  4. Step 4: Simplify right side
    212,845.60x = 37,604,298,872.52
  5. Step 5: Solve for x
    x = 37,604,298,872.52/212,845.60
  6. Step 6: Final answer
    x = 176,674.07

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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.