Home / 212,630.03-319,070.61-77,682.11

Finding the Fourth Proportional to 212,630.03, 319,070.61 and 77,682.11

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Solution

The fourth proportional to 212,630.03, 319,070.61 and 77,682.11 is: 116,569.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,630.03 : 319,070.61 = 77,682.11 : x
  2. Step 2: Convert to fraction form
    212,630.03/319,070.61 = 77,682.11/x
  3. Step 3: Cross multiply
    212,630.03x = 319,070.61 × 77,682.11
  4. Step 4: Simplify right side
    212,630.03x = 24,786,076,628.43
  5. Step 5: Solve for x
    x = 24,786,076,628.43/212,630.03
  6. Step 6: Final answer
    x = 116,569.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.