Home / 210,962.48-316,341.44-77,905.44

Finding the Fourth Proportional to 210,962.48, 316,341.44 and 77,905.44

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Solution

The fourth proportional to 210,962.48, 316,341.44 and 77,905.44 is: 116,820.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,962.48 : 316,341.44 = 77,905.44 : x
  2. Step 2: Convert to fraction form
    210,962.48/316,341.44 = 77,905.44/x
  3. Step 3: Cross multiply
    210,962.48x = 316,341.44 × 77,905.44
  4. Step 4: Simplify right side
    210,962.48x = 24,644,719,073.43
  5. Step 5: Solve for x
    x = 24,644,719,073.43/210,962.48
  6. Step 6: Final answer
    x = 116,820.39

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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.