Home / 204,877.12-307,312.02-78,483.10

Finding the Fourth Proportional to 204,877.12, 307,312.02 and 78,483.10

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Solution

The fourth proportional to 204,877.12, 307,312.02 and 78,483.10 is: 117,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,877.12 : 307,312.02 = 78,483.10 : x
  2. Step 2: Convert to fraction form
    204,877.12/307,312.02 = 78,483.10/x
  3. Step 3: Cross multiply
    204,877.12x = 307,312.02 × 78,483.10
  4. Step 4: Simplify right side
    204,877.12x = 24,118,799,996.86
  5. Step 5: Solve for x
    x = 24,118,799,996.86/204,877.12
  6. Step 6: Final answer
    x = 117,723.25

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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.