Home / 212,072.91-292,543.83-134,406.48

Finding the Fourth Proportional to 212,072.91, 292,543.83 and 134,406.48

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Solution

The fourth proportional to 212,072.91, 292,543.83 and 134,406.48 is: 185,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,072.91 : 292,543.83 = 134,406.48 : x
  2. Step 2: Convert to fraction form
    212,072.91/292,543.83 = 134,406.48/x
  3. Step 3: Cross multiply
    212,072.91x = 292,543.83 × 134,406.48
  4. Step 4: Simplify right side
    212,072.91x = 39,319,786,436.02
  5. Step 5: Solve for x
    x = 39,319,786,436.02/212,072.91
  6. Step 6: Final answer
    x = 185,406.93

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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.