Home / 92,214.20-138,321.30-56,784.80

Finding the Fourth Proportional to 92,214.20, 138,321.30 and 56,784.80

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Solution

The fourth proportional to 92,214.20, 138,321.30 and 56,784.80 is: 85,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,214.20 : 138,321.30 = 56,784.80 : x
  2. Step 2: Convert to fraction form
    92,214.20/138,321.30 = 56,784.80/x
  3. Step 3: Cross multiply
    92,214.20x = 138,321.30 × 56,784.80
  4. Step 4: Simplify right side
    92,214.20x = 7,854,547,356.24
  5. Step 5: Solve for x
    x = 7,854,547,356.24/92,214.20
  6. Step 6: Final answer
    x = 85,177.20

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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.