Home / 212,101.88-292,702.49-115,305.93

Finding the Fourth Proportional to 212,101.88, 292,702.49 and 115,305.93

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Solution

The fourth proportional to 212,101.88, 292,702.49 and 115,305.93 is: 159,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,101.88 : 292,702.49 = 115,305.93 : x
  2. Step 2: Convert to fraction form
    212,101.88/292,702.49 = 115,305.93/x
  3. Step 3: Cross multiply
    212,101.88x = 292,702.49 × 115,305.93
  4. Step 4: Simplify right side
    212,101.88x = 33,750,332,246.24
  5. Step 5: Solve for x
    x = 33,750,332,246.24/212,101.88
  6. Step 6: Final answer
    x = 159,123.21

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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.