Home / 102,225.60-141,069.96-56,905.50

Finding the Fourth Proportional to 102,225.60, 141,069.96 and 56,905.50

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Solution

The fourth proportional to 102,225.60, 141,069.96 and 56,905.50 is: 78,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,225.60 : 141,069.96 = 56,905.50 : x
  2. Step 2: Convert to fraction form
    102,225.60/141,069.96 = 56,905.50/x
  3. Step 3: Cross multiply
    102,225.60x = 141,069.96 × 56,905.50
  4. Step 4: Simplify right side
    102,225.60x = 8,027,656,608.78
  5. Step 5: Solve for x
    x = 8,027,656,608.78/102,225.60
  6. Step 6: Final answer
    x = 78,528.83

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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.