Home / 102,225.75-141,071.49-56,902.74

Finding the Fourth Proportional to 102,225.75, 141,071.49 and 56,902.74

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Solution

The fourth proportional to 102,225.75, 141,071.49 and 56,902.74 is: 78,525.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,225.75 : 141,071.49 = 56,902.74 : x
  2. Step 2: Convert to fraction form
    102,225.75/141,071.49 = 56,902.74/x
  3. Step 3: Cross multiply
    102,225.75x = 141,071.49 × 56,902.74
  4. Step 4: Simplify right side
    102,225.75x = 8,027,354,316.88
  5. Step 5: Solve for x
    x = 8,027,354,316.88/102,225.75
  6. Step 6: Final answer
    x = 78,525.76

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1.5x scale

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.